Please install the following:

http://www.microsoft.com/downloads/details.aspx?FamilyId=7B9BA261-7A9C-43E7-9117-F673077FFB3C&displaylang=en

This is the vb6 distributable package and includes all the updated DLL's, etc.  We ARE running the latest service packs on our development machines but some of the newer server operating systems still complain.  Guess it's time for an upgrade to .NET!