>If you're still using this as your test harness, would it be worth documenting for the msdn/vfoxpro web site? It sounds like a great proof-of-concept app.

"Proof of concept"? We actually ship it. :-) It's Application Center Test, which AFAIK, only ships with Application Center and VS .NET Enterprise. Before that I was using Web Application Stress Tool, which used to be a free download, but it doesn't look like we have it on the site anymore. It was always in beta, poorly documented, and didn't implement everything it documented. But it did the job. ACT is a much better tool, and more easily automated.

>By the way, are the COM DLLs in COM+ applications, are they instanced directly through ASP or ASP.NET through Interop?

Most are COM+ apps, though I do have some interop tests.