AUTOEXEC.NT Fix Method 1:
copy;   %windir%\repair\autoexec.nt
to
%windir%\system32

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

{ assuming the OS 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;  lpt345.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 ! * * *