I have taken over the administration of a Windows Server 2008 64bit installation. The server has ESET NOD32 Antivirus Business Edition v4.2 installed.
The server hasn't been updating its virus signature database in the last few days, and upon trying to do a manual update, I get the following error message:
"Base file missing".
Here is a screenshot of the error:
I've tried to find a solution for this problem on the ESET website, as well as on Google, but this hasn't been successful.