I'm attempting to "Configure HTTP Access to Analysis Services on Internet Information Services (IIS) 7.0" according to http://msdn.microsoft.com/en-us/library/gg492140.aspx
When browsing http://server:8080/OLAP/msmdpump.dll, I'm running into an HTTP 500 response and can see the failed request trace shows. (Note, this works in a local environment, but not on our DEV server).
ModuleName IsapiModule
Notification 128
HttpStatus 500
HttpReason Internal Server Error
HttpSubStatus 0
ErrorCode 2147942526
ConfigExceptionInfo
Notification EXECUTE_REQUEST_HANDLER
ErrorCode The specified module could not be found. (0x8007007e)
How can I troubleshoot this error? What permissions need to be verified?