We are migrating from Windows Server 2003 / IIS6 to Windows Server 2008 (32-bit) / IIS7 and I am having trouble getting our OLAP HTTP access re-established. I had this working fine under IIS6 but am now getting the error "HTTP Error 500.0 - Internal
Server Error" when attempting to access msmdpump.dll via a browser.
Our existing Win2003 server emits a blob of useful XML when you access the dll via a browser, the new Win2008 server just issues a HTTP 500 error. Obviously when I get around this error we'll be using standard OLAP clients like Excel and Report Builder
I have followed these instructions:
The Windows Event Logs contain no errors relating to the failed attempts. I temporarily configured Failed Request Tracing and got a couple of traces of the error occurring. The most pertinent thing I could find in the FRT was: