I've got a Windows 2008 SP2 server runing x64. When i try to access the SharePoint Central Admin site, I just get a blank page. No errors in the Windows logs, nothing showing up in the SharePoint logs. The IIS log shows a 500 error. I enabled Failed Request Tracing for the 500 status code, which gives me the following information: 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) Any idea what I can do next? I have tried performing a Repair on the SharePoint installation and I have rerun the configuration wizard, but neither of these have helped. Thanks Ivan

You might see that error code when you attempt to browse a 32 bit ISAPI dll on a 64 bit OS. You mention your Server OS is x64. But the error mentions win32. What version of SharePoint are you installing and bit type?Fred Ellis - MSFT - "Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread."