Bad Image message after Backdoor.Tidserv!gen removal

I had a Backdoor.Tiderv!gen which Norton  removed successfully but now I'm getting a Bad Image error message on any program I run,

for example:

"WINWORD.EXE The application or DLL globalroot\Device\IDE\IdePort3\vmkbcepy\vmkbcepy\tdlwsp.dll is not a valid Windows image. Please check this against your installation diskette."

Once I click okay everything works fine.

How do I get rid of these messages?