Trying to fix my husband's computer and am about at my wit's end. It appears that these problems may be related to the Trojan Dowloader Zlob.AOJ that I've since removed, but the problems still persist. Symptoms Several programs will not run, instead displaying the error message: C:\WINDOWS\system 32\rundll.32.3xe The NTVDM CPU has encountered an illegal instruction CS:0549 IP:02b0 OP:c6 32 fa 3c 77 (this code varies) Some of the programs affected include: Netscape, Properties, Add/Remove programs, eTrust autodownload, Add Hardware, Security Center, System Info, Wordperfect The problem also occurs in Safe Mode Also, upon booting, eTrust antivirus (which I've since disabled since it's not working) would display the following message: eTrust EZ Antivirus Out-of-date Warning: Warning You MUST download and install the latest virus signature files for your anti-virus software before it will start working. You have no antivirus protection until you finish installation by installing the virus signature update. (Note: this product was up-to-date before.) If we then click Autodownload we get the message: AutoDown.exe - Bad Image: The application or DLL C: WINDOWS\system32\sesapi.dll is not a valid Windows image. Please check this against your installation diskette. eTrust Firewall gives the message on boot-up: Unable to load MyVault. My husband tried to Restore to an earlier system; this did not work. Per some suggestions on the Microsoft site, I've checked autoexec.nt and config.nt - both look fine. I can run command.com from the "Run" command, and have no problems running commands from the DOS prompt. It seems to only be some Windows programs that are affected. I tried disabling all programs that load at start-up. That didn't work. I deleted tmp files. I cleaned the registry using Tune Up Utilities 2004. That didn't work either. (After that the network connection to the internet completely disappeared and the system isn't recognizing our wireless adapter, though that could be a hardware problem since the adapter's been a bit quirky lately.) At this point, I'm downloading things onto my computer and copying them to my husband's computer. So far we've used AVG - which detected and cleaned the Zlob.AOJ virus, Ewido - which got rid of 37 adware/tracking cookies, ErrorKiller - which cleaned up over 300 registry entries - all to no avail. I ran HiJackThis and found a few questionable or unnecessary items after running it through the analyzer which I had it fix. The latest HijackThis log appears to be clean, but the problems still persist. Does this suggest some permanent file damage?

This page may be of help to you http://forums.spybot.info/showthread.php?t=5037 Hopefully my advice will help you...Please post back with your results....thanks