16 bit MS-DOS Subsystem

[Guest]

I had several programs that worked fine, until I disconnected my RoadRunner
modem and reconnected. This disconnect/reconnect was done per TimeWarner to
enable my system to be capable of their new enhanced "speed".

Two of my dos .exe programs will not work. I get a box with the above
subject message and below is what is in the box:

"C:\windows\system32\autoexec.nt. The system file is not suitable for
running MS-DOS and Microsoft windows applications. Choose "close" to
terminate the application".

Any suggestions as to how I can fix this problem. Thanks in advance.

 

[Wesley Vogel]

Seems to be an epidemic lately....

This can be caused by a trojan.

Get rid of the trojan.

Update your antivirus software and run a full system scan.

Copy the autoexec.nt file from C:\Windows\Repair to C:\Windows\System32.
And set Attributes for autoexec.nt to Read-only.

Read-only
[[Specifies whether this file is read-only, which means that it cannot be
changed or accidentally deleted.]]

1. Right click the file.
2. Properties.
3. Select: Read-only.
4. Click: Apply.
5. Click: OK.

16-bit MS-DOS Subsystem error while installing or running a DOS application
http://windowsxp.mvps.org/16bit.htm

MS-DOS or 16-bit Windows-based program Error Message
http://www.kellys-korner-xp.com/xp_m.htm#16bit

Error message when you install or start an MS-DOS or 16-bit Windows-based
program
http://support.microsoft.com/default.aspx?scid=kb;en-us;324767

--
Hope this helps. Let us know.

Wes
MS-MVP Windows Shell/User

In

 

[Malke]

I had several programs that worked fine, until I disconnected my
RoadRunner
modem and reconnected. This disconnect/reconnect was done per
TimeWarner to enable my system to be capable of their new enhanced
"speed".

Two of my dos .exe programs will not work. I get a box with the above
subject message and below is what is in the box:

"C:\windows\system32\autoexec.nt. The system file is not suitable for
running MS-DOS and Microsoft windows applications. Choose "close" to
terminate the application".

Any suggestions as to how I can fix this problem. Thanks in advance.

Error message when you install or start an MS-DOS or 16-bit
Windows-based program:
http://support.microsoft.com/default.aspx?scid=kb;en-us;324767&Product=winxp

This can also be caused by malware.

Also, AVAST (antivirus software) can be the cause if you have WinXP SP2
installed:
http://groups.google.com/[email protected]

You can put back the standard version of autoexec.nt/config.nt by
copying a backup copy held in %windir%\repair\ to %windir%\system32\
(%windir% is typically C:\Windows) instead of using the procedure in
the KB article above.

Malke

 

[David H. Lipman]

AUTOEXEC.NT Fix Method 1:
copy; c:\windows\repair\autoexec.nt
to
c:\windows\system32


AUTOEXEC.NT FIX Method 2:
Go to; Start --> Run
enter; cmd.exe

{ assuming the WinXP CDROM disk is in drive "D:" }
In the Command Prompt enter...
expand D:\i386\autoexec.nt_ %windir%\system32\autoexec.nt


Since there are many forms of malware that can cause a problem with AUTOEXEC.NT, please
perform the following...


1) Download the following three items...

Trend Sysclean Package
http://www.trendmicro.com/download/dcs.asp

Latest Trend Pattern File.
http://www.trendmicro.com/download/pattern.asp

Adaware SE (free personal version v1.05)
http://www.lavasoftusa.com/

Create a directory.
On drive "C:\"
(e.g., "c:\New Folder")
or the desktop
(e.g., "C:\Documents and Settings\lipman\Desktop\New Folder")

Download Sysclean.com and place it in that directory.
Download the Trend Pattern File by obtaining the ZIP file.
For example; lpt394.zip

Extract the contents of the ZIP file and place the contents in the same directory as
sysclean.com.

2) Update Adaware with the latest definitions.
3) Disable System Restore
http://vil.nai.com/vil/SystemHelpDocs/DisableSysRestore.htm
4) Reboot your PC into Safe Mode
5) Using both the Trend Sysclean utility and Adaware, perform a Full Scan of your
platform and clean/delete any infectors/parasites found.
(a few cycles may be needed)
6) Restart your PC and perform a "final" Full Scan of your platform using both the
Trend Sysclean utility and Adaware
7) Re-enable System Restore and re-apply any System Restore preferences,
(e.g. HD space to use suggested 400 ~ 600MB),
8) Reboot your PC.
9) Create a new Restore point


* * * Please report your results ! * * *


Dave
http://www.claymania.com/removal-trojan-adware.html






| I had several programs that worked fine, until I disconnected my RoadRunner
| modem and reconnected. This disconnect/reconnect was done per TimeWarner to
| enable my system to be capable of their new enhanced "speed".
|
| Two of my dos .exe programs will not work. I get a box with the above
| subject message and below is what is in the box:
|
| "C:\windows\system32\autoexec.nt. The system file is not suitable for
| running MS-DOS and Microsoft windows applications. Choose "close" to
| terminate the application".
|
| Any suggestions as to how I can fix this problem. Thanks in advance.
|
|
|