Com DLL in .Net 2.0 Remoting Application under IIS Not Working

I have a .net 2.0 remoting application that is run on my XP dev machine under IIS 5.1. This application has a legacy com dll (vb6) that is accessed. Previously, the application was run in Visual Studio using a exe startup project. We now have a need for it to be run under IIS as it is on our servers. The application runs fine until it attempts to use the com dll. No error is displayed, but the application hangs on the call to the dll. The dll is registered using regsvr32, but I am at a loss as to what else I can do to troubleshoot this considering there is no error provided.

Any help would be appreciated.