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sysupd.exe - DLL initialization failed

a few days ago, my computer detected a virus called the download trojan. i started following the steps on symantec on how to remove the virus and when i got to the step where i had to do a full system scan, the search came up with nothing. since then, there has been no virus detection messages that have popped up. so i suppose that the virus is gone. i might be wrong though, i'm not sure. since then, every time i turn off my computer, right before shutting down, a window pops up and says sysupd.exe - DLL initialization failed. so my questions are:

what does this mean?
does it have anything to do with the virus?
how do i fix this problem?

if there is any possibility that the virus is still on my computer, how do i get rid of it?

thanks in advance.
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1 Solution
This site says you're still infected with a virus, a variant of MyDoom:


and here's another one on this same thread:

If the above doesn't solve it for you:  You could try the free online virus tool at http://housecall.antivirus.com    I find that it isn't always able to CURE every virus it detects, but it is good at detecting and identifying them.  

A couple of other free online virus scanners:



Also try these free programs to rid your system of spyware, trojans, and other malware:

Spybot - Search & Destroy can detect and remove a multitude of adware files and modules from your computer. Spybot can also clean program and Web usage tracks from your system, which is especially useful if you share your computer with other users. Modules chosen for removal can be sent directly to the included file shredder, ensuring complete elimination from your system. And for advanced users, it allows you to fix Registry inconsistencies related to adware or malicious program installations. The handy online update feature ensures that Spybot always has the most current and complete listing of adware, dialers, and other uninvited system residents.
Version 1.2 adds a variety of new and updated features, including an immunization option that allows you to block many spyware downloads before they get to your computer, and improved detection mechanisms for morphing files.

With its ability to scan your RAM, Registry, hard drives, and external storage devices for known data mining, advertising, and tracking components, Ad-aware can easily rid your system of these tracking components, allowing you to maintain a higher degree of privacy while you surf the Web.
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