Do you have a script configuration xml file with the same name as the
VB script? It should have the same file name as the script but have
the '.xml' extension rather than '.vb'.
Never mind that... I was just able to reproduce the problem. Unless I can find a work-around, I'm afraid that referencing external assemblies from a VB script is not supported.
i just bumped into the same problems and I go tit working by putting the assebly in the Installationfolder of Vegas 4. But Maybe it has something to do with the XML configuration?
With VB, the dll must go in the Vegas install directory... As far as I've been able to determine, the limitation is in the VB script engine. The IsLocal attribute should be false or missing for VB script configuration file AssemblyReference elements.