actually there are instructions for manual removal of worm ..
in short
1 Disable System Restore (Windows Me/XP).
2 Restart the computer in Safe mode or VGA mode.
3 Delete the value that was added to the registry
goto this value
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run.
delete this value
"NvClipRsv"="<path to the worm>"
and you can also delete the worm file
4 Delete the added lines from the Windows Hosts file
for actual details .. look into the page
-----
alibi