OracleClient, Oracle 10g, Connection failure

D

davebythesea

Hi,

I'm trying to connect to an Oracle database via a .NET web service running
in IIS on a Windows 2000 server.

I am using the OracleClient (System.Data.OracleClient) provider . When I
call connection.Open() I get the following error -

'System.Data.OracleClient requires Oracle client software version 8.1.7 or
greater'

The Oracle 10 client is installed on the box as well as .NET framework V 2.0.

Any ideas as to why this is happening? Do I need to install something else?

Many thanks,
Dav
 
P

Paul Clement

¤ Hi,
¤
¤ I'm trying to connect to an Oracle database via a .NET web service running
¤ in IIS on a Windows 2000 server.
¤
¤ I am using the OracleClient (System.Data.OracleClient) provider . When I
¤ call connection.Open() I get the following error -
¤
¤ 'System.Data.OracleClient requires Oracle client software version 8.1.7 or
¤ greater'
¤
¤ The Oracle 10 client is installed on the box as well as .NET framework V 2.0.
¤
¤ Any ideas as to why this is happening? Do I need to install something else?

See if the following helps:

From Oracle's MetaLink:


Problem Description
-------------------

When running an application using any of the following versions of the Oracle
client software for Windows

o Oracle9i Release 2 (9.2.0.1.0, 9.2.0.2.0, 9.2.0.3.0)
o Oracle10g Release 1 (10.1.0.2.0)
o Oracle10g Release 2 (10.2.0.1.0, 10.2.0.2.0) (see note below)

NOTE: If experiencing any of the errors below on Oracle10g Release 2 client
software please apply SOLUTION 2 ONLY. SOLUTION 1 does NOT apply in
this case.

and you attempt to connect to an Oracle database through an environment that
uses the "Authenticated User" group

NOTE: This typically occurs when running applications from inside
Microsoft's Internet Information Server (IIS) that connect to Oracle

and you are using any of these programmatic interfaces from your application

1. Oracle Provider for OLE DB
2. Microsoft OLE DB Provider for Oracle
3. Oracle ODBC Driver
4. Microsoft ODBC for Oracle
5. Oracle Objects for OLE (OO4O)
6. Microsoft .NET Framework Data Provider for Oracle
7. Oracle Data Provider for .NET (ODP.NET)

you may receive one of the following errors:


(1) Oracle Provider for OLE DB

(a) Error Type: Microsoft OLE DB Service Components (0x80070005)

Access is denied.


(b) OraOLEDB.Oracle Provider is not registered on the local machine


(c) SQL Server Enterprise Manager (Using a Linked Server)

Error 7311: Could not obtain the schema rowset from OLE DB provider
'UNKNOWN'. The provider supports the interface, but returns
failure code when it is used.

OLE DB error trace [OLE/DB Provider 'UNKNOWN'
IDBSSchemaRowset::GetRowset returned 0x80040e37: ].

(d) OLEDBException: TNS-12154: TNS could not resolve service name

(e) Run-time error '3706':

Provider cannot be found. It may not be properly installed.


(2) Microsoft OLE DB Provider for Oracle

(a) Error Type: Microsoft OLE DB Provider for Oracle (0x80004005)

Oracle client and networking components were not found. These
components are supplied by Oracle Corporation and are part of the
Oracle Version 7.3.3 or later client software installation. Provider
is unable to function until these components are installed.


(b) Error Type: Microsoft OLE DB Provider for Oracle (0x80004005)

Oracle error occurred, but error message could not be retrieved
from Oracle.


(c) SQL Server Enterprise Manager (Using a Linked Server)

Error 7399: OLE DB Provider 'MSDAORA' reported an error.

OLE DB error trace [OLE/DB Provider 'MSDAORA'
IDBInitialize::Initialize returned 0x80004005: ].


(3) Oracle ODBC Driver

(a) Error Type: Microsoft OLE DB Provider for ODBC Drivers (0x80004005)

Specified driver could not be loaded due to system error 5 (Oracle
in OraHome92).

(b) Microsoft OLE DB Provider for ODBC Drivers (0x80004005)
[Microsoft][ODBC Driver Manager] Data source name not found and
no default driver specified

(c) SQLSTATE: IM004
Native Error Code: 0
Driver Message: [Microsoft][ODBC Driver Manager] Driver's
SQLAllocHandle on SQL_HANDLE_ENV failed.


(4) Microsoft ODBC for Oracle

(a) The Oracle(tm) client and networking components were not found.
These components are supplied by Oracle Corporation and are part
of the Oracle Version 7.3 (or greater) client software installation.

You will be unable to use this driver until these components have
been installed.


(b) Error number: -2147467259

Error Description: [Microsoft][ODBC Driver Manager] Driver's
SQLAllocHandle on SQL_HANDLE_ENV failed


(5) Oracle Objects for OLE

(a) while using a GLOBAL.ASA file

Error Type: Active Server Pages (0x0)

An error occurred while creating object 'OraSession'.


(b) not using a GLOBAL.ASA file

Error Type: Microsoft VBScript runtime (0x800A0046)

Permission denied: 'CreateObject'


(6) Microsoft .NET Framework Data Provider for Oracle

(a) System.DllNotFoundException: Unable to load DLL (oci.dll).
at System.Data.OracleClient.DBObjectPool.GetObject(Boolean&
isInTransaction)
at System.Data.OracleClient.OracleConnectionPoolManager.
GetPooledConnection(String encryptedConnectionString,
OracleConnectionString options, Boolean& isInTransaction)
at System.Data.OracleClient.OracleConnection.OpenInternal
(OracleConnectionString parsedConnectionString, Object transact)
at System.Data.OracleClient.OracleConnection.Open()
at WCWSItemAvailability.ETAAvailability.SingleAvailability(String
ItemNumber, String BusinessUnit, Int32 OrderQty, Int32&
AvailableQty, Int32& OnHandQty, String& ETADate, Int32& Error)
at WCWSItemAvailability.ETAAvailability.XMLAvailability(String
XMLInput)

(b) Server Error in '<name>' Application.

Could not create an environment: OCIEnvCreate returned -1.

Description: An unhandled exception occurred during the execution of
the current web request. Please review the stack trace for more
information about the error and where it originated in the code.

Exception Details: System.Exception: Could not create an environment:
OCIEnvCreate returned -1.
Stack Trace:

[Exception: Could not create an environment: OCIEnvCreate returned
-1.]
System.Data.OracleClient.DBObjectPool.GetObject(Boolean&
isInTransaction) +467
System.Data.OracleClient.OracleConnectionPoolManager.
GetPooledConnection(String encryptedConnectionString,
OracleConnectionString options, Boolean& isInTransaction) +165
System.Data.OracleClient.OracleConnection.OpenInternal
(OracleConnectionString parsedConnectionString, Object transact)
+836
System.Data.OracleClient.OracleConnection.Open() +32

(c) Unable to find entry point named OCIEnvCreate in OCI.DLL


(7) Oracle Data Provider for .NET (ODP.NET)

(a) ORA-01012: not logged on

(b) ORA-12154 "TNS:could not resolve service name"

(c) System.TypeInitializationException: The type initializer for
'Oracle.DataAccess.Client.OracleConnection' threw an exception. --->
Oracle.DataAccess.Client.OracleException The provider is not
compatible with the version of Oracle client at
Oracle.DataAccess.Client.OracleInit.Initialize()
at Oracle.DataAccess.Client.OracleConnection..cctor()


(8) Other miscellaneous errors

(a) The Specified Module Could Not Be Found

(b) ORA-00604: error occurred at recursive SQL level 1
ORA-12705: invalid or unknown NLS parameter value specified

(c) Unable to load DLL (OraOps9.dll):
...
[DllNotFoundException: Unable to load DLL (OraOps9.dll).]

(d) System Error 998 trying to run ASP page

(e) Your OCI application returns a -1 when calling OCIEnvCreate

(f) You receive an Access Violation Exception from OraGeneric9.dll when
trying to write to memory.


Solution Description
--------------------

NOTE: This problem DOES NOT exist in the Oracle10g Release 2 (10.2.0.1.0) and
later client software for Windows. If you think you are are running
into a similar issue on 10.2.0.1.0 or later software, please see the
"References" section below for other possible solutions.


There are two ways to resolve this problem:

SOLUTION 1 - If you must remain on the current version of the client software
this solution will step you through the manual process for
fixing the permissions problem.

SOLUTION 2 - If you are able to patch your client software to a later version
this solution will advise you on what patch to apply to resolve
this problem.

NOTE - If you are using the Oracle10g Instant Client you MUST follow
SOLUTION 1.


SOLUTION 1
==========

Oracle Client software requires that you give the Authenticated User
privilege to the Oracle Home by following these steps:

1. Log on to Windows as a user with Administrator privileges.

2. Launch Windows Explorer from the Start Menu and navigate to the
ORACLE_HOME folder. This is typically...

- the "Ora92" folder under the "Oracle" folder
(i.e. D:\Oracle\Ora92) in Oracle9iR2

or

- the "Client_1" folder under the "Oracle\product\10.1.0" folder
(i.e. D:\Oracle\product\10.1.0\Client_1) in Oracle10gR1

or

- the "Db_1" folder under the "Oracle\product\10.1.0" folder
(i.e. D:\Oracle\product\10.1.0\Db_1) in Oracle10gR1

3. Right-click on the ORACLE_HOME folder and choose the "Properties" option
from the drop down list. A "Properties" window should appear.

4. Click on the "Security" tab of the "Properties" window.

NOTE: If you are running Windows XP and do not have a "Security" tab
please do the following:

(a) Open "Folder Options" in your Control Panel.
(b) Choose the "View" tab.
(c) Under "Advanced Settings" uncheck the option "Use simple file
sharing (Recommended)".

The "Security" tab should now be available.

5. Click on "Authenticated Users" item in the "Name" list (on Windows XP
the "Name" list is called "Group or user names").

6. Uncheck the "Read and Execute" box in the "Permissions" list under the
"Allow" column (on Windows XP the "Permissions" list is called
"Permissions for Authenticated Users").

7. Re-check the "Read and Execute" box under the "Allow" column (this is
the box you just unchecked).

8. Click the "Advanced" button and in the "Permission Entries" list make
sure you see the "Authenticated Users" listed there with:

Permission = Read & Execute
Apply To = This folder, subfolders and files

If this is NOT the case, edit that line and make sure the "Apply onto"
drop-down box is set to "This folder, subfolders and files". This
should already be set properly but it is important that you verify this.

9. Click the "Ok" button until you close out all of the security properties
windows. The cursor may present the hour glass for a few seconds as it
applies the permissions you just changed to all subfolders and files.

10. You must REBOOT YOUR COMPUTER to assure that these changes have taken
effect. Failure to do this can prevent this procedure from working!

11. Re-execute the application and it should now work.


NOTE: If the problem is still present after following steps 1-11 and
rebooting your computer in step 10 you should perform the following
two additional permissions settings at step 8 as described below.

This may be necessary due to permissions that have been configured
beyond the standard permissions setup when the OS was originally
installed:

12. If the problem is still present, go back through these same 11 steps
above, but when performing step 8 additionally check both boxes entitled

"Inherit from parent the permission entries that apply to child
objects. Include these with entries explicitly defined here."

AND

"Replace permission entries on all child objects with entries shown
here that apply to child objects"

AND be sure to reboot in step 10.


SOLUTION 2
==========

9.2.0.1.0, 9.2.0.2.0, 9.2.0.3.0

If you are running Oracle9i Release 2 (9.2.0.1.0 or 9.2.0.2.0 or 9.2.0.3.0)
client software please apply the following 9.2.0.4.0 patch OR LATER:

* Patch Number: 3095277
Description: 9.2.0.4 PATCH SET FOR ORACLE DATABASE SERVER
Product: Oracle Database Family
Release: Oracle 9.2.0.4
Platform: Microsoft Windows (32-bit)
Last Uploaded: 11-SEP-2003
Size: 256M (269101182 bytes)


10.1.0.2.0

If you are running Oracle10g Release 1 (10.1.0.2.0) client software please
apply the following 10.1.0.3.0 patch OR LATER (i.e. 10.1.0.x.x):

* Patch Number: 3761843
Description: 10.1.0.3 PATCH SET FOR ORACLE DATABASE SERVER
Product: Oracle Database Family
Release: Oracle 10.1.0.3
Platform: Microsoft Windows (32-bit)
Last Uploaded: 22-AUG-2004
Size: 447M (469761432 bytes)


10.2.0.1.0, 10.2.0.2.0

If you are running Oracle10g Release 2 (10.2.0.1.0 or 10.2.0.2.0) client
software please apply the following 10.2.0.3.0 patch OR LATER
(i.e. 10.2.0.x.x):

* Patch Number: 5337014
Description: 10.2.0.3 PATCH SET FOR ORACLE DATABASE SERVER
Product: Oracle Database Family
Release: Oracle 10.2.0.3
Platform: Microsoft Windows (32-bit)
Last Uploaded: 21-FEB-2007
Size: 852M (893831865 bytes)


* NOTE: Although these patches appear to be database-only patches they can
also be applied to the client software as well. See the patch
release notes for more information on how to install the patch onto
client software.


Explanation
-----------

If you install Oracle9i Release 2 (9.2.0.1.0) or Oracle10g Release 1
(10.1.0.2.0) client software on a computer running Windows with an NTFS
partition, the contents of ORACLE_HOME directory will not be visible to users
who are authenticated on that machine. These permissions were not set properly
when the software was installed.

Applications that were working fine with previous versions of Oracle software
will stop working when they upgrade to Oracle 9.2 or 10.1.

NOTE: The application will continue to work if it runs as the Administrator
of the machine.

Any application that is using the Authenticated User or possibly another
privilege will not work. A notable example would be IIS which might service
some of the requests based on the Authenticated User privileges.

To demonstrate the problem in further detail, you can log on to the operating
system as an authenticated machine user. You won't be able browse the contents
of the ORACLE_HOME directory demonstrating your inability to load any Oracle
DLLs or make a connection.


Additional Information
----------------------

The above error messages may not only be encountered when using Oracle 9.2 or
10.1 client software but may also exist when running into general permissions
issues using third party products accessing Oracle on a Windows platform.
Paul
~~~~
Microsoft MVP (Visual Basic)
 
D

davebythesea

Thanks Paul,

We managed to solve the problem here.

First we installed the .NET Managed Provider for Oracle. This allowed us to
make a connection to Oracle with a windows Forms test application running
locally on the server. However, when we tried to access Oracle via IIS (a web
page) it still gave the same error message.

So we then installed the MDAC 2.8 components and that did the trick.

Thanks,
Dav

Paul Clement said:
¤ Hi,
¤
¤ I'm trying to connect to an Oracle database via a .NET web service running
¤ in IIS on a Windows 2000 server.
¤
¤ I am using the OracleClient (System.Data.OracleClient) provider . When I
¤ call connection.Open() I get the following error -
¤
¤ 'System.Data.OracleClient requires Oracle client software version 8.1.7 or
¤ greater'
¤
¤ The Oracle 10 client is installed on the box as well as .NET framework V 2.0.
¤
¤ Any ideas as to why this is happening? Do I need to install something else?

See if the following helps:

From Oracle's MetaLink:


Problem Description
-------------------

When running an application using any of the following versions of the Oracle
client software for Windows

o Oracle9i Release 2 (9.2.0.1.0, 9.2.0.2.0, 9.2.0.3.0)
o Oracle10g Release 1 (10.1.0.2.0)
o Oracle10g Release 2 (10.2.0.1.0, 10.2.0.2.0) (see note below)

NOTE: If experiencing any of the errors below on Oracle10g Release 2 client
software please apply SOLUTION 2 ONLY. SOLUTION 1 does NOT apply in
this case.

and you attempt to connect to an Oracle database through an environment that
uses the "Authenticated User" group

NOTE: This typically occurs when running applications from inside
Microsoft's Internet Information Server (IIS) that connect to Oracle

and you are using any of these programmatic interfaces from your application

1. Oracle Provider for OLE DB
2. Microsoft OLE DB Provider for Oracle
3. Oracle ODBC Driver
4. Microsoft ODBC for Oracle
5. Oracle Objects for OLE (OO4O)
6. Microsoft .NET Framework Data Provider for Oracle
7. Oracle Data Provider for .NET (ODP.NET)

you may receive one of the following errors:


(1) Oracle Provider for OLE DB

(a) Error Type: Microsoft OLE DB Service Components (0x80070005)

Access is denied.


(b) OraOLEDB.Oracle Provider is not registered on the local machine


(c) SQL Server Enterprise Manager (Using a Linked Server)

Error 7311: Could not obtain the schema rowset from OLE DB provider
'UNKNOWN'. The provider supports the interface, but returns
failure code when it is used.

OLE DB error trace [OLE/DB Provider 'UNKNOWN'
IDBSSchemaRowset::GetRowset returned 0x80040e37: ].

(d) OLEDBException: TNS-12154: TNS could not resolve service name

(e) Run-time error '3706':

Provider cannot be found. It may not be properly installed.


(2) Microsoft OLE DB Provider for Oracle

(a) Error Type: Microsoft OLE DB Provider for Oracle (0x80004005)

Oracle client and networking components were not found. These
components are supplied by Oracle Corporation and are part of the
Oracle Version 7.3.3 or later client software installation. Provider
is unable to function until these components are installed.


(b) Error Type: Microsoft OLE DB Provider for Oracle (0x80004005)

Oracle error occurred, but error message could not be retrieved
from Oracle.


(c) SQL Server Enterprise Manager (Using a Linked Server)

Error 7399: OLE DB Provider 'MSDAORA' reported an error.

OLE DB error trace [OLE/DB Provider 'MSDAORA'
IDBInitialize::Initialize returned 0x80004005: ].


(3) Oracle ODBC Driver

(a) Error Type: Microsoft OLE DB Provider for ODBC Drivers (0x80004005)

Specified driver could not be loaded due to system error 5 (Oracle
in OraHome92).

(b) Microsoft OLE DB Provider for ODBC Drivers (0x80004005)
[Microsoft][ODBC Driver Manager] Data source name not found and
no default driver specified

(c) SQLSTATE: IM004
Native Error Code: 0
Driver Message: [Microsoft][ODBC Driver Manager] Driver's
SQLAllocHandle on SQL_HANDLE_ENV failed.


(4) Microsoft ODBC for Oracle

(a) The Oracle(tm) client and networking components were not found.
These components are supplied by Oracle Corporation and are part
of the Oracle Version 7.3 (or greater) client software installation.

You will be unable to use this driver until these components have
been installed.


(b) Error number: -2147467259

Error Description: [Microsoft][ODBC Driver Manager] Driver's
SQLAllocHandle on SQL_HANDLE_ENV failed


(5) Oracle Objects for OLE

(a) while using a GLOBAL.ASA file

Error Type: Active Server Pages (0x0)

An error occurred while creating object 'OraSession'.


(b) not using a GLOBAL.ASA file

Error Type: Microsoft VBScript runtime (0x800A0046)

Permission denied: 'CreateObject'


(6) Microsoft .NET Framework Data Provider for Oracle

(a) System.DllNotFoundException: Unable to load DLL (oci.dll).
at System.Data.OracleClient.DBObjectPool.GetObject(Boolean&
isInTransaction)
at System.Data.OracleClient.OracleConnectionPoolManager.
GetPooledConnection(String encryptedConnectionString,
OracleConnectionString options, Boolean& isInTransaction)
at System.Data.OracleClient.OracleConnection.OpenInternal
(OracleConnectionString parsedConnectionString, Object transact)
at System.Data.OracleClient.OracleConnection.Open()
at WCWSItemAvailability.ETAAvailability.SingleAvailability(String
ItemNumber, String BusinessUnit, Int32 OrderQty, Int32&
AvailableQty, Int32& OnHandQty, String& ETADate, Int32& Error)
at WCWSItemAvailability.ETAAvailability.XMLAvailability(String
XMLInput)

(b) Server Error in '<name>' Application.

Could not create an environment: OCIEnvCreate returned -1.

Description: An unhandled exception occurred during the execution of
the current web request. Please review the stack trace for more
information about the error and where it originated in the code.

Exception Details: System.Exception: Could not create an environment:
OCIEnvCreate returned -1.
Stack Trace:

[Exception: Could not create an environment: OCIEnvCreate returned
-1.]
System.Data.OracleClient.DBObjectPool.GetObject(Boolean&
isInTransaction) +467
System.Data.OracleClient.OracleConnectionPoolManager.
GetPooledConnection(String encryptedConnectionString,
OracleConnectionString options, Boolean& isInTransaction) +165
System.Data.OracleClient.OracleConnection.OpenInternal
(OracleConnectionString parsedConnectionString, Object transact)
+836
System.Data.OracleClient.OracleConnection.Open() +32

(c) Unable to find entry point named OCIEnvCreate in OCI.DLL


(7) Oracle Data Provider for .NET (ODP.NET)

(a) ORA-01012: not logged on

(b) ORA-12154 "TNS:could not resolve service name"

(c) System.TypeInitializationException: The type initializer for
'Oracle.DataAccess.Client.OracleConnection' threw an exception. --->
Oracle.DataAccess.Client.OracleException The provider is not
compatible with the version of Oracle client at
Oracle.DataAccess.Client.OracleInit.Initialize()
at Oracle.DataAccess.Client.OracleConnection..cctor()


(8) Other miscellaneous errors

(a) The Specified Module Could Not Be Found

(b) ORA-00604: error occurred at recursive SQL level 1
ORA-12705: invalid or unknown NLS parameter value specified

(c) Unable to load DLL (OraOps9.dll):
...
[DllNotFoundException: Unable to load DLL (OraOps9.dll).]

(d) System Error 998 trying to run ASP page

(e) Your OCI application returns a -1 when calling OCIEnvCreate

(f) You receive an Access Violation Exception from OraGeneric9.dll when
trying to write to memory.


Solution Description
--------------------

NOTE: This problem DOES NOT exist in the Oracle10g Release 2 (10.2.0.1.0) and
later client software for Windows. If you think you are are running
into a similar issue on 10.2.0.1.0 or later software, please see the
"References" section below for other possible solutions.


There are two ways to resolve this problem:

SOLUTION 1 - If you must remain on the current version of the client software
this solution will step you through the manual process for
fixing the permissions problem.

SOLUTION 2 - If you are able to patch your client software to a later version
this solution will advise you on what patch to apply to resolve
this problem.

NOTE - If you are using the Oracle10g Instant Client you MUST follow
SOLUTION 1.


SOLUTION 1
==========

Oracle Client software requires that you give the Authenticated User
privilege to the Oracle Home by following these steps:

1. Log on to Windows as a user with Administrator privileges.

2. Launch Windows Explorer from the Start Menu and navigate to the
ORACLE_HOME folder. This is typically...

- the "Ora92" folder under the "Oracle" folder
(i.e. D:\Oracle\Ora92) in Oracle9iR2

or

- the "Client_1" folder under the "Oracle\product\10.1.0" folder
(i.e. D:\Oracle\product\10.1.0\Client_1) in Oracle10gR1

or

- the "Db_1" folder under the "Oracle\product\10.1.0" folder
(i.e. D:\Oracle\product\10.1.0\Db_1) in Oracle10gR1

3. Right-click on the ORACLE_HOME folder and choose the "Properties" option
from the drop down list. A "Properties" window should appear.

4. Click on the "Security" tab of the "Properties" window.

NOTE: If you are running Windows XP and do not have a "Security" tab
please do the following:

(a) Open "Folder Options" in your Control Panel.
(b) Choose the "View" tab.
(c) Under "Advanced Settings" uncheck the option "Use simple file
sharing (Recommended)".

The "Security" tab should now be available.

5. Click on "Authenticated Users" item in the "Name" list (on Windows XP
the "Name" list is called "Group or user names").

6. Uncheck the "Read and Execute" box in the "Permissions" list under the
"Allow" column (on Windows XP the "Permissions" list is called
"Permissions for Authenticated Users").
 
T

Tittle

There are no words to express how much your solution helped us. We've
been seeing one exception in .net and were not able to find out the
root cause of it. We had a new joinee in our team and he had Oracle
10G installed with .Net. At all other system the same application was
working, but it was not working on his system, we were not sure if it
is .Net specific error, or domain access issue or Oracle Issue. Your
solution really helped us and saved us many hours.

Thanks
Tittle
 
R

ranjitsinh deshmukh

I am very thankful to you. I was working on this problem for last 72 hours but I was not able to crack it. This is excellent and to the point solution
Thank you again
 
A

aloy co

Paul,

I encountered one of the problems deploying SSIS and calling it trough a Job. And getting error
"Oracle client and networking components were not found. These
components are supplied by Oracle Corporation and are part of the
Oracle Version 7.3.3 or later client software installation. Provider
is unable to function until these components are installed"
..
I added the "Authenticated Users" to the ORACLE_HOME folder security and it did fix it.
Thanks for sharing this information. It was a great help.

Environment:
Win Server 2008
Oracle 11g
MSSQL2008/SSIS



Paul Clement wrote:

Re: OracleClient, Oracle 10g, Connection failure
26-Mar-08


? Hi
?
? I'm trying to connect to an Oracle database via a .NET web service running
? in IIS on a Windows 2000 server.
?
? I am using the OracleClient (System.Data.OracleClient) provider . When I
? call connection.Open() I get the following error -
?
? 'System.Data.OracleClient requires Oracle client software version 8.1.7 or
? greater
?
? The Oracle 10 client is installed on the box as well as .NET framework V 2.0
?
? Any ideas as to why this is happening? Do I need to install something else

See if the following helps

From Oracle's MetaLink:

Problem Descriptio
------------------

When running an application using any of the following versions of the Oracl
client software for Window

o Oracle9i Release 2 (9.2.0.1.0, 9.2.0.2.0, 9.2.0.3.0
o Oracle10g Release 1 (10.1.0.2.0
o Oracle10g Release 2 (10.2.0.1.0, 10.2.0.2.0) (see note below

NOTE: If experiencing any of the errors below on Oracle10g Release 2 clien
software please apply SOLUTION 2 ONLY. SOLUTION 1 does NOT apply i
this case

and you attempt to connect to an Oracle database through an environment tha
uses the "Authenticated User" grou

NOTE: This typically occurs when running applications from insid
Microsoft's Internet Information Server (IIS) that connect to Oracl

and you are using any of these programmatic interfaces from your applicatio

1. Oracle Provider for OLE D
2. Microsoft OLE DB Provider for Oracl
3. Oracle ODBC Drive
4. Microsoft ODBC for Oracl
5. Oracle Objects for OLE (OO4O
6. Microsoft .NET Framework Data Provider for Oracl
7. Oracle Data Provider for .NET (ODP.NET

you may receive one of the following errors

(1) Oracle Provider for OLE D

(a) Error Type: Microsoft OLE DB Service Components (0x80070005

Access is denied

(b) OraOLEDB.Oracle Provider is not registered on the local machin

(c) SQL Server Enterprise Manager (Using a Linked Server

Error 7311: Could not obtain the schema rowset from OLE DB provide
'UNKNOWN'. The provider supports the interface, but return
failure code when it is used

OLE DB error trace [OLE/DB Provider 'UNKNOWN
IDBSSchemaRowset::GetRowset returned 0x80040e37: ]

(d) OLEDBException: TNS-12154: TNS could not resolve service nam

(e) Run-time error '3706'

Provider cannot be found. It may not be properly installed

(2) Microsoft OLE DB Provider for Oracl

(a) Error Type: Microsoft OLE DB Provider for Oracle (0x80004005

Oracle client and networking components were not found. Thes
components are supplied by Oracle Corporation and are part of th
Oracle Version 7.3.3 or later client software installation. Provide
is unable to function until these components are installed

(b) Error Type: Microsoft OLE DB Provider for Oracle (0x80004005

Oracle error occurred, but error message could not be retrieve
from Oracle

(c) SQL Server Enterprise Manager (Using a Linked Server

Error 7399: OLE DB Provider 'MSDAORA' reported an error

OLE DB error trace [OLE/DB Provider 'MSDAORA
IDBInitialize::Initialize returned 0x80004005: ]


(3) Oracle ODBC Driver

(a) Error Type: Microsoft OLE DB Provider for ODBC Drivers (0x80004005)

Specified driver could not be loaded due to system error 5 (Oracle
in OraHome92).

(b) Microsoft OLE DB Provider for ODBC Drivers (0x80004005)
[Microsoft][ODBC Driver Manager] Data source name not found and
no default driver specified

(c) SQLSTATE: IM004
Native Error Code: 0
Driver Message: [Microsoft][ODBC Driver Manager] Driver's
SQLAllocHandle on SQL_HANDLE_ENV failed.


(4) Microsoft ODBC for Oracle

(a) The Oracle(tm) client and networking components were not found.
These components are supplied by Oracle Corporation and are part
of the Oracle Version 7.3 (or greater) client software installation.

You will be unable to use this driver until these components have
been installed.


(b) Error number: -2147467259

Error Description: [Microsoft][ODBC Driver Manager] Driver's
SQLAllocHandle on SQL_HANDLE_ENV failed


(5) Oracle Objects for OLE

(a) while using a GLOBAL.ASA file

Error Type: Active Server Pages (0x0)

An error occurred while creating object 'OraSession'.


(b) not using a GLOBAL.ASA file

Error Type: Microsoft VBScript runtime (0x800A0046)

Permission denied: 'CreateObject'


(6) Microsoft .NET Framework Data Provider for Oracle

(a) System.DllNotFoundException: Unable to load DLL (oci.dll).
at System.Data.OracleClient.DBObjectPool.GetObject(Boolean&
isInTransaction)
at System.Data.OracleClient.OracleConnectionPoolManager.
GetPooledConnection(String encryptedConnectionString,
OracleConnectionString options, Boolean& isInTransaction)
at System.Data.OracleClient.OracleConnection.OpenInternal
(OracleConnectionString parsedConnectionString, Object transact)
at System.Data.OracleClient.OracleConnection.Open()
at WCWSItemAvailability.ETAAvailability.SingleAvailability(String
ItemNumber, String BusinessUnit, Int32 OrderQty, Int32&
AvailableQty, Int32& OnHandQty, String& ETADate, Int32& Error)
at WCWSItemAvailability.ETAAvailability.XMLAvailability(String
XMLInput)

(b) Server Error in '<name>' Application.

Could not create an environment: OCIEnvCreate returned -1.

Description: An unhandled exception occurred during the execution of
the current web request. Please review the stack trace for more
information about the error and where it originated in the code.

Exception Details: System.Exception: Could not create an environment:
OCIEnvCreate returned -1.
Stack Trace:

[Exception: Could not create an environment: OCIEnvCreate returned
-1.]
System.Data.OracleClient.DBObjectPool.GetObject(Boolean&
isInTransaction) +467
System.Data.OracleClient.OracleConnectionPoolManager.
GetPooledConnection(String encryptedConnectionString,
OracleConnectionString options, Boolean& isInTransaction) +165
System.Data.OracleClient.OracleConnection.OpenInternal
(OracleConnectionString parsedConnectionString, Object transact)
+836
System.Data.OracleClient.OracleConnection.Open() +32

(c) Unable to find entry point named OCIEnvCreate in OCI.DLL


(7) Oracle Data Provider for .NET (ODP.NET)

(a) ORA-01012: not logged on

(b) ORA-12154 "TNS:could not resolve service name"

(c) System.TypeInitializationException: The type initializer for
'Oracle.DataAccess.Client.OracleConnection' threw an exception. --->
Oracle.DataAccess.Client.OracleException The provider is not
compatible with the version of Oracle client at
Oracle.DataAccess.Client.OracleInit.Initialize()
at Oracle.DataAccess.Client.OracleConnection..cctor()


(8) Other miscellaneous errors

(a) The Specified Module Could Not Be Found

(b) ORA-00604: error occurred at recursive SQL level 1
ORA-12705: invalid or unknown NLS parameter value specified

(c) Unable to load DLL (OraOps9.dll):
...
[DllNotFoundException: Unable to load DLL (OraOps9.dll).]

(d) System Error 998 trying to run ASP page

(e) Your OCI application returns a -1 when calling OCIEnvCreate

(f) You receive an Access Violation Exception from OraGeneric9.dll when
trying to write to memory.


Solution Description
--------------------

NOTE: This problem DOES NOT exist in the Oracle10g Release 2 (10.2.0.1.0) and
later client software for Windows. If you think you are are running
into a similar issue on 10.2.0.1.0 or later software, please see the
"References" section below for other possible solutions.


There are two ways to resolve this problem:

SOLUTION 1 - If you must remain on the current version of the client software
this solution will step you through the manual process for
fixing the permissions problem.

SOLUTION 2 - If you are able to patch your client software to a later version
this solution will advise you on what patch to apply to resolve
this problem.

NOTE - If you are using the Oracle10g Instant Client you MUST follow
SOLUTION 1.


SOLUTION 1
==========

Oracle Client software requires that you give the Authenticated User
privilege to the Oracle Home by following these steps:

1. Log on to Windows as a user with Administrator privileges.

2. Launch Windows Explorer from the Start Menu and navigate to the
ORACLE_HOME folder. This is typically...

- the "Ora92" folder under the "Oracle" folder
(i.e. D:\Oracle\Ora92) in Oracle9iR2

or

- the "Client_1" folder under the "Oracle\product\10.1.0" folder
(i.e. D:\Oracle\product\10.1.0\Client_1) in Oracle10gR1

or

- the "Db_1" folder under the "Oracle\product\10.1.0" folder
(i.e. D:\Oracle\product\10.1.0\Db_1) in Oracle10gR1

3. Right-click on the ORACLE_HOME folder and choose the "Properties" option
from the drop down list. A "Properties" window should appear.

4. Click on the "Security" tab of the "Properties" window.

NOTE: If you are running Windows XP and do not have a "Security" tab
please do the following:

(a) Open "Folder Options" in your Control Panel.
(b) Choose the "View" tab.
(c) Under "Advanced Settings" uncheck the option "Use simple file
sharing (Recommended)".

The "Security" tab should now be available.

5. Click on "Authenticated Users" item in the "Name" list (on Windows XP
the "Name" list is called "Group or user names").

6. Uncheck the "Read and Execute" box in the "Permissions" list under the
"Allow" column (on Windows XP the "Permissions" list is called
"Permissions for Authenticated Users").

7. Re-check the "Read and Execute" box under the "Allow" column (this is
the box you just unchecked).

8. Click the "Advanced" button and in the "Permission Entries" list make
sure you see the "Authenticated Users" listed there with:

Permission = Read & Execute
Apply To = This folder, subfolders and files

If this is NOT the case, edit that line and make sure the "Apply onto"
drop-down box is set to "This folder, subfolders and files". This
should already be set properly but it is important that you verify this.

9. Click the "Ok" button until you close out all of the security properties
windows. The cursor may present the hour glass for a few seconds as it
applies the permissions you just changed to all subfolders and files.

10. You must REBOOT YOUR COMPUTER to assure that these changes have taken
effect. Failure to do this can prevent this procedure from working!

11. Re-execute the application and it should now work.


NOTE: If the problem is still present after following steps 1-11 and
rebooting your computer in step 10 you should perform the following
two additional permissions settings at step 8 as described below.

This may be necessary due to permissions that have been configured
beyond the standard permissions setup when the OS was originally
installed:

12. If the problem is still present, go back through these same 11 steps
above, but when performing step 8 additionally check both boxes entitled

"Inherit from parent the permission entries that apply to child
objects. Include these with entries explicitly defined here."

AND

"Replace permission entries on all child objects with entries shown
here that apply to child objects"

AND be sure to reboot in step 10.


SOLUTION 2
==========

9.2.0.1.0, 9.2.0.2.0, 9.2.0.3.0

If you are running Oracle9i Release 2 (9.2.0.1.0 or 9.2.0.2.0 or 9.2.0.3.0)
client software please apply the following 9.2.0.4.0 patch OR LATER:

* Patch Number: 3095277
Description: 9.2.0.4 PATCH SET FOR ORACLE DATABASE SERVER
Product: Oracle Database Family
Release: Oracle 9.2.0.4
Platform: Microsoft Windows (32-bit)
Last Uploaded: 11-SEP-2003
Size: 256M (269101182 bytes)


10.1.0.2.0

If you are running Oracle10g Release 1 (10.1.0.2.0) client software please
apply the following 10.1.0.3.0 patch OR LATER (i.e. 10.1.0.x.x):

* Patch Number: 3761843
Description: 10.1.0.3 PATCH SET FOR ORACLE DATABASE SERVER
Product: Oracle Database Family
Release: Oracle 10.1.0.3
Platform: Microsoft Windows (32-bit)
Last Uploaded: 22-AUG-2004
Size: 447M (469761432 bytes)


10.2.0.1.0, 10.2.0.2.0

If you are running Oracle10g Release 2 (10.2.0.1.0 or 10.2.0.2.0) client
software please apply the following 10.2.0.3.0 patch OR LATER
(i.e. 10.2.0.x.x):

* Patch Number: 5337014
Description: 10.2.0.3 PATCH SET FOR ORACLE DATABASE SERVER
Product: Oracle Database Family
Release: Oracle 10.2.0.3
Platform: Microsoft Windows (32-bit)
Last Uploaded: 21-FEB-2007
Size: 852M (893831865 bytes)


* NOTE: Although these patches appear to be database-only patches they can
also be applied to the client software as well. See the patch
release notes for more information on how to install the patch onto
client software.


Explanation
-----------

If you install Oracle9i Release 2 (9.2.0.1.0) or Oracle10g Release 1
(10.1.0.2.0) client software on a computer running Windows with an NTFS
partition, the contents of ORACLE_HOME directory will not be visible to users
who are authenticated on that machine. These permissions were not set properly
when the software was installed.

Applications that were working fine with previous versions of Oracle software
will stop working when they upgrade to Oracle 9.2 or 10.1.

NOTE: The application will continue to work if it runs as the Administrator
of the machine.

Any application that is using the Authenticated User or possibly another
privilege will not work. A notable example would be IIS which might service
some of the requests based on the Authenticated User privileges.

To demonstrate the problem in further detail, you can log on to the operating
system as an authenticated machine user. You won't be able browse the contents
of the ORACLE_HOME directory demonstrating your inability to load any Oracle
DLLs or make a connection.


Additional Information
----------------------

The above error messages may not only be encountered when using Oracle 9.2 or
10.1 client software but may also exist when running into general permissions
issues using third party products accessing Oracle on a Windows platform.
Paul
~~~~
Microsoft MVP (Visual Basic)

Previous Posts In This Thread:

OracleClient, Oracle 10g, Connection failure
Hi,

I'm trying to connect to an Oracle database via a .NET web service running
in IIS on a Windows 2000 server.

I am using the OracleClient (System.Data.OracleClient) provider . When I
call connection.Open() I get the following error -

'System.Data.OracleClient requires Oracle client software version 8.1.7 or
greater'

The Oracle 10 client is installed on the box as well as .NET framework V 2.0.

Any ideas as to why this is happening? Do I need to install something else?

Many thanks,
Dav

Re: OracleClient, Oracle 10g, Connection failure

? Hi,
?
? I'm trying to connect to an Oracle database via a .NET web service running
? in IIS on a Windows 2000 server.
?
? I am using the OracleClient (System.Data.OracleClient) provider . When I
? call connection.Open() I get the following error -
?
? 'System.Data.OracleClient requires Oracle client software version 8.1.7 or
? greater
?
? The Oracle 10 client is installed on the box as well as .NET framework V 2.0
?
? Any ideas as to why this is happening? Do I need to install something else

See if the following helps

From Oracle's MetaLink:

Problem Descriptio
------------------

When running an application using any of the following versions of the Oracl
client software for Window

o Oracle9i Release 2 (9.2.0.1.0, 9.2.0.2.0, 9.2.0.3.0
o Oracle10g Release 1 (10.1.0.2.0
o Oracle10g Release 2 (10.2.0.1.0, 10.2.0.2.0) (see note below

NOTE: If experiencing any of the errors below on Oracle10g Release 2 clien
software please apply SOLUTION 2 ONLY. SOLUTION 1 does NOT apply i
this case

and you attempt to connect to an Oracle database through an environment tha
uses the "Authenticated User" grou

NOTE: This typically occurs when running applications from insid
Microsoft's Internet Information Server (IIS) that connect to Oracl

and you are using any of these programmatic interfaces from your applicatio

1. Oracle Provider for OLE D
2. Microsoft OLE DB Provider for Oracl
3. Oracle ODBC Drive
4. Microsoft ODBC for Oracl
5. Oracle Objects for OLE (OO4O
6. Microsoft .NET Framework Data Provider for Oracl
7. Oracle Data Provider for .NET (ODP.NET

you may receive one of the following errors

(1) Oracle Provider for OLE D

(a) Error Type: Microsoft OLE DB Service Components (0x80070005

Access is denied

(b) OraOLEDB.Oracle Provider is not registered on the local machin

(c) SQL Server Enterprise Manager (Using a Linked Server

Error 7311: Could not obtain the schema rowset from OLE DB provide
'UNKNOWN'. The provider supports the interface, but return
failure code when it is used

OLE DB error trace [OLE/DB Provider 'UNKNOWN
IDBSSchemaRowset::GetRowset returned 0x80040e37: ]

(d) OLEDBException: TNS-12154: TNS could not resolve service nam

(e) Run-time error '3706'

Provider cannot be found. It may not be properly installed

(2) Microsoft OLE DB Provider for Oracl

(a) Error Type: Microsoft OLE DB Provider for Oracle (0x80004005

Oracle client and networking components were not found. Thes
components are supplied by Oracle Corporation and are part of th
Oracle Version 7.3.3 or later client software installation. Provide
is unable to function until these components are installed

(b) Error Type: Microsoft OLE DB Provider for Oracle (0x80004005

Oracle error occurred, but error message could not be retrieve
from Oracle

(c) SQL Server Enterprise Manager (Using a Linked Server

Error 7399: OLE DB Provider 'MSDAORA' reported an error

OLE DB error trace [OLE/DB Provider 'MSDAORA
IDBInitialize::Initialize returned 0x80004005: ]

(3) Oracle ODBC Drive

(a) Error Type: Microsoft OLE DB Provider for ODBC Drivers (0x80004005

Specified driver could not be loaded due to system error 5 (Oracl
in OraHome92)

(b) Microsoft OLE DB Provider for ODBC Drivers (0x80004005
[Microsoft][ODBC Driver Manager] Data source name not found an
no default driver specifie

(c) SQLSTATE: IM00
Native Error Code:
Driver Message: [Microsoft][ODBC Driver Manager] Driver'
SQLAllocHandle on SQL_HANDLE_ENV failed

(4) Microsoft ODBC for Oracl

(a) The Oracle(tm) client and networking components were not found
These components are supplied by Oracle Corporation and are par
of the Oracle Version 7.3 (or greater) client software installation.

You will be unable to use this driver until these components have
been installed.


(b) Error number: -2147467259

Error Description: [Microsoft][ODBC Driver Manager] Driver's
SQLAllocHandle on SQL_HANDLE_ENV failed


(5) Oracle Objects for OLE

(a) while using a GLOBAL.ASA file

Error Type: Active Server Pages (0x0)

An error occurred while creating object 'OraSession'.


(b) not using a GLOBAL.ASA file

Error Type: Microsoft VBScript runtime (0x800A0046)

Permission denied: 'CreateObject'


(6) Microsoft .NET Framework Data Provider for Oracle

(a) System.DllNotFoundException: Unable to load DLL (oci.dll).
at System.Data.OracleClient.DBObjectPool.GetObject(Boolean&
isInTransaction)
at System.Data.OracleClient.OracleConnectionPoolManager.
GetPooledConnection(String encryptedConnectionString,
OracleConnectionString options, Boolean& isInTransaction)
at System.Data.OracleClient.OracleConnection.OpenInternal
(OracleConnectionString parsedConnectionString, Object transact)
at System.Data.OracleClient.OracleConnection.Open()
at WCWSItemAvailability.ETAAvailability.SingleAvailability(String
ItemNumber, String BusinessUnit, Int32 OrderQty, Int32&
AvailableQty, Int32& OnHandQty, String& ETADate, Int32& Error)
at WCWSItemAvailability.ETAAvailability.XMLAvailability(String
XMLInput)

(b) Server Error in '<name>' Application.

Could not create an environment: OCIEnvCreate returned -1.

Description: An unhandled exception occurred during the execution of
the current web request. Please review the stack trace for more
information about the error and where it originated in the code.

Exception Details: System.Exception: Could not create an environment:
OCIEnvCreate returned -1.
Stack Trace:

[Exception: Could not create an environment: OCIEnvCreate returned
-1.]
System.Data.OracleClient.DBObjectPool.GetObject(Boolean&
isInTransaction) +467
System.Data.OracleClient.OracleConnectionPoolManager.
GetPooledConnection(String encryptedConnectionString,
OracleConnectionString options, Boolean& isInTransaction) +165
System.Data.OracleClient.OracleConnection.OpenInternal
(OracleConnectionString parsedConnectionString, Object transact)
+836
System.Data.OracleClient.OracleConnection.Open() +32

(c) Unable to find entry point named OCIEnvCreate in OCI.DLL


(7) Oracle Data Provider for .NET (ODP.NET)

(a) ORA-01012: not logged on

(b) ORA-12154 "TNS:could not resolve service name"

(c) System.TypeInitializationException: The type initializer for
'Oracle.DataAccess.Client.OracleConnection' threw an exception. --->
Oracle.DataAccess.Client.OracleException The provider is not
compatible with the version of Oracle client at
Oracle.DataAccess.Client.OracleInit.Initialize()
at Oracle.DataAccess.Client.OracleConnection..cctor()


(8) Other miscellaneous errors

(a) The Specified Module Could Not Be Found

(b) ORA-00604: error occurred at recursive SQL level 1
ORA-12705: invalid or unknown NLS parameter value specified

(c) Unable to load DLL (OraOps9.dll):
...
[DllNotFoundException: Unable to load DLL (OraOps9.dll).]

(d) System Error 998 trying to run ASP page

(e) Your OCI application returns a -1 when calling OCIEnvCreate

(f) You receive an Access Violation Exception from OraGeneric9.dll when
trying to write to memory.


Solution Description
--------------------

NOTE: This problem DOES NOT exist in the Oracle10g Release 2 (10.2.0.1.0) and
later client software for Windows. If you think you are are running
into a similar issue on 10.2.0.1.0 or later software, please see the
"References" section below for other possible solutions.


There are two ways to resolve this problem:

SOLUTION 1 - If you must remain on the current version of the client software
this solution will step you through the manual process for
fixing the permissions problem.

SOLUTION 2 - If you are able to patch your client software to a later version
this solution will advise you on what patch to apply to resolve
this problem.

NOTE - If you are using the Oracle10g Instant Client you MUST follow
SOLUTION 1.


SOLUTION 1
==========

Oracle Client software requires that you give the Authenticated User
privilege to the Oracle Home by following these steps:

1. Log on to Windows as a user with Administrator privileges.

2. Launch Windows Explorer from the Start Menu and navigate to the
ORACLE_HOME folder. This is typically...

- the "Ora92" folder under the "Oracle" folder
(i.e. D:\Oracle\Ora92) in Oracle9iR2

or

- the "Client_1" folder under the "Oracle\product\10.1.0" folder
(i.e. D:\Oracle\product\10.1.0\Client_1) in Oracle10gR1

or

- the "Db_1" folder under the "Oracle\product\10.1.0" folder
(i.e. D:\Oracle\product\10.1.0\Db_1) in Oracle10gR1

3. Right-click on the ORACLE_HOME folder and choose the "Properties" option
from the drop down list. A "Properties" window should appear.

4. Click on the "Security" tab of the "Properties" window.

NOTE: If you are running Windows XP and do not have a "Security" tab
please do the following:

(a) Open "Folder Options" in your Control Panel.
(b) Choose the "View" tab.
(c) Under "Advanced Settings" uncheck the option "Use simple file
sharing (Recommended)".

The "Security" tab should now be available.

5. Click on "Authenticated Users" item in the "Name" list (on Windows XP
the "Name" list is called "Group or user names").

6. Uncheck the "Read and Execute" box in the "Permissions" list under the
"Allow" column (on Windows XP the "Permissions" list is called
"Permissions for Authenticated Users").

7. Re-check the "Read and Execute" box under the "Allow" column (this is
the box you just unchecked).

8. Click the "Advanced" button and in the "Permission Entries" list make
sure you see the "Authenticated Users" listed there with:

Permission = Read & Execute
Apply To = This folder, subfolders and files

If this is NOT the case, edit that line and make sure the "Apply onto"
drop-down box is set to "This folder, subfolders and files". This
should already be set properly but it is important that you verify this.

9. Click the "Ok" button until you close out all of the security properties
windows. The cursor may present the hour glass for a few seconds as it
applies the permissions you just changed to all subfolders and files.

10. You must REBOOT YOUR COMPUTER to assure that these changes have taken
effect. Failure to do this can prevent this procedure from working!

11. Re-execute the application and it should now work.


NOTE: If the problem is still present after following steps 1-11 and
rebooting your computer in step 10 you should perform the following
two additional permissions settings at step 8 as described below.

This may be necessary due to permissions that have been configured
beyond the standard permissions setup when the OS was originally
installed:

12. If the problem is still present, go back through these same 11 steps
above, but when performing step 8 additionally check both boxes entitled

"Inherit from parent the permission entries that apply to child
objects. Include these with entries explicitly defined here."

AND

"Replace permission entries on all child objects with entries shown
here that apply to child objects"

AND be sure to reboot in step 10.


SOLUTION 2
==========

9.2.0.1.0, 9.2.0.2.0, 9.2.0.3.0

If you are running Oracle9i Release 2 (9.2.0.1.0 or 9.2.0.2.0 or 9.2.0.3.0)
client software please apply the following 9.2.0.4.0 patch OR LATER:

* Patch Number: 3095277
Description: 9.2.0.4 PATCH SET FOR ORACLE DATABASE SERVER
Product: Oracle Database Family
Release: Oracle 9.2.0.4
Platform: Microsoft Windows (32-bit)
Last Uploaded: 11-SEP-2003
Size: 256M (269101182 bytes)


10.1.0.2.0

If you are running Oracle10g Release 1 (10.1.0.2.0) client software please
apply the following 10.1.0.3.0 patch OR LATER (i.e. 10.1.0.x.x):

* Patch Number: 3761843
Description: 10.1.0.3 PATCH SET FOR ORACLE DATABASE SERVER
Product: Oracle Database Family
Release: Oracle 10.1.0.3
Platform: Microsoft Windows (32-bit)
Last Uploaded: 22-AUG-2004
Size: 447M (469761432 bytes)


10.2.0.1.0, 10.2.0.2.0

If you are running Oracle10g Release 2 (10.2.0.1.0 or 10.2.0.2.0) client
software please apply the following 10.2.0.3.0 patch OR LATER
(i.e. 10.2.0.x.x):

* Patch Number: 5337014
Description: 10.2.0.3 PATCH SET FOR ORACLE DATABASE SERVER
Product: Oracle Database Family
Release: Oracle 10.2.0.3
Platform: Microsoft Windows (32-bit)
Last Uploaded: 21-FEB-2007
Size: 852M (893831865 bytes)


* NOTE: Although these patches appear to be database-only patches they can
also be applied to the client software as well. See the patch
release notes for more information on how to install the patch onto
client software.


Explanation
-----------

If you install Oracle9i Release 2 (9.2.0.1.0) or Oracle10g Release 1
(10.1.0.2.0) client software on a computer running Windows with an NTFS
partition, the contents of ORACLE_HOME directory will not be visible to users
who are authenticated on that machine. These permissions were not set properly
when the software was installed.

Applications that were working fine with previous versions of Oracle software
will stop working when they upgrade to Oracle 9.2 or 10.1.

NOTE: The application will continue to work if it runs as the Administrator
of the machine.

Any application that is using the Authenticated User or possibly another
privilege will not work. A notable example would be IIS which might service
some of the requests based on the Authenticated User privileges.

To demonstrate the problem in further detail, you can log on to the operating
system as an authenticated machine user. You won't be able browse the contents
of the ORACLE_HOME directory demonstrating your inability to load any Oracle
DLLs or make a connection.


Additional Information
----------------------

The above error messages may not only be encountered when using Oracle 9.2 or
10.1 client software but may also exist when running into general permissions
issues using third party products accessing Oracle on a Windows platform.
Paul
~~~~
Microsoft MVP (Visual Basic)

Thanks Paul,We managed to solve the problem here.First we installed the .
Thanks Paul,

We managed to solve the problem here.

First we installed the .NET Managed Provider for Oracle. This allowed us to
make a connection to Oracle with a windows Forms test application running
locally on the server. However, when we tried to access Oracle via IIS (a web
page) it still gave the same error message.

So we then installed the MDAC 2.8 components and that did the trick.

Thanks,
Dav

:

There are no words to express how much your solution helped us.
There are no words to express how much your solution helped us. We've
been seeing one exception in .net and were not able to find out the
root cause of it. We had a new joinee in our team and he had Oracle
10G installed with .Net. At all other system the same application was
working, but it was not working on his system, we were not sure if it
is .Net specific error, or domain access issue or Oracle Issue. Your
solution really helped us and saved us many hours.

Thanks
Tittle

Thank You Very Much
I am very thankful to you. I was working on this problem for last 72 hours but I was not able to crack it. This is excellent and to the point solution
Thank you again


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