Power User rights vs. User rights

G

Guest

We have a application that runs correctly if the user is part of the power
users group but will not correctly if the use is part of the users group.
Why is this? Is there a way to get the user to be able to run the
application while still part of the users group?
 
T

Torgeir Bakken \(MVP\)

swhwsu said:
We have a application that runs correctly if the user is part of the power
users group but will not correctly if the use is part of the users group.
Why is this? Is there a way to get the user to be able to run the
application while still part of the users group?
Hi

One way is to use Sysinternals RegMon/FileMon utilities to try to find
what registry keys/file system folders the application need write
access to and set rights accordingly for the locked down user account.

RegMon/FileMon is available for free here:

http://www.sysinternals.com
 
C

Chris Weber [Security MVP]

That's right. Unfortunately many applications are poorly coded, meaning
they run find with admin rights but not lower privs. The app is likely
trying to write to a part of the file system that Users cannot write to,
like C:\Windows or C:\Program Files.
 
B

Bruce Chambers

swhwsu said:
We have a application that runs correctly if the user is part of the power
users group but will not correctly if the use is part of the users group.
Why is this? Is there a way to get the user to be able to run the
application while still part of the users group?


This is quite common if the software was designed for Win9x/Me, or
if it was intended for WinNT/2K/XP, but was improperly designed. Quite
simply, the installation routine for this application doesn't "know"
how to handle individual user profiles, or the application tries to
make changes to "off-limits" sections of the registry. Quite often,
you can make this software available to other users by _copying_ the
Start Menu folder and Desktop folder shortcuts from the user profile
from which the software was installed in the corresponding folders in
the user profile(s) in which you'd like the software to be accessible.
If the application is something that can/should be made available to
all current and future users, copying the shortcuts into the
corresponding locations of the All Users profile will do the trick.

NOTE: This may not work if the software requires access to parts
of the hard drive and/or registry that are not normally accessible to
regular users. (This won't occur if the application was properly
written.) If this does prove to be the case, however, you're left
with two options: Either grant the necessary users appropriate higher
access privileges (either as Power Users or local administrators), or
replace the application with one that was properly designed
specifically for WinNT/2K/XP.

Some Programs Do Not Work If You Log On from Limited Account
http://support.microsoft.com/default.aspx?scid=kb;EN-US;q307091

For some obscure reason, game developers in particular seem to not
understand WinXP's file security paradigm, and require even limited
users to have unnecessarily high privileges to protected systems
folders. For example, saved games are often stored in a sub-folder
under the game's folder within C:\Program Files - a place where no
inexperienced or limited user should have write permissions.

Additionally, here are a couple of tips suggested, in a reply to a
different post, by MS-MVP Kent W. England:

"If your game or application works with admin accounts, but not with
limited accounts, you can fix it to allow limited users to access the
program files folder with "change" capability rather than "read" which
is the default.

C:\>cacls "Program Files\appfolder" /e /t /p users:c

where "appfolder" is the folder where the application is installed.

If you wish to undo these changes, then run

C:\>cacls "Program Files\appfolder" /e /t /p users:r

If you still have a problem with running the program or saving
settings on limited accounts, you may need to change permissions on
the registry keys. Run regedit.exe and go to HKLM\Software\vendor\app,
where "vendor\app" is the key that the software vendor used for your
specific program. Change the permissions on this key to allow Users
full control."


--

Bruce Chambers

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