>OK, I'll keep that in mind if I ever run into the same problem. Thanks for posting your discovery back here.

There might be other mysteries in it. But, for sure, as soon as I saw it in IIS, I found that this was not correct. So, I adjusted it, retried and it worked. From my log, no method call succeeded once I installed the .NET Framework 1.1. So, that's the only think I could find at this point.