I have windows 2k8 x64/windows sharepoint services on IIS7.5. What I'm trying to do is to run 32bit application on 64bit sharepoint site. Sharepoint site is configured to use 64 bit application pool, my application - 32 bit application pool. I get "500 internal server error" during application load. From failed request log:
ModuleName IsapiModule Notification 128 HttpStatus 500 HttpReason Internal Server Error HttpSubStatus 0 ErrorCode 2147942593 ConfigExceptionInfo Notification EXECUTE_REQUEST_HANDLER ErrorCode %1 is not a valid Win32 application. (0x800700c1)
Seems like sharepoint is forcing to load x64 version of ISAPI module, any ideas why or how to change that?
BTW, non-sharepoint x64 site allows running x32 applications.
Thank you so much for sharing this information. I've been struggling with this issue and hadn't found the solution. Your solution worked wonderfully. I now have a 32 bit classic ASP application configured as a subapplication of 64 bit
SharePoint. You made my weekend. If you live in the Washington, D.C. area, please let me buy you a beer!