Invalid Page Faults in Rpcss.exe

• Microsoft Windows 95

SYMPTOMS

You may receive the following error message when you run a program that uses RPC (remote procedure calls):

   An exception 0E has occurred in Rpcss.exe...

CAUSE

The Windows 95 RPC endpoint mapper service, Rpcss.exe, may not correctly handle reentrancy (more than one pending request). If the RPC endpoint mapper is concurrently accessed by two processes, or twice within one process, an invalid page fault (exception 0E) may occur in Rpcss.exe.

This behavior is somewhat timing-dependent, and may not occur consistently on all computers.

STATUS

Microsoft has confirmed this to be a problem in Microsoft Windows 95 and OEM Service Release 2 (OSR2). An update to address this problem is now available, but is not fully regression-tested and should be applied only to systems experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft does not recommend implementing this update at this time. Contact Microsoft Technical Support for additional information about the availability of this update.

MORE INFORMATION

Since this behavior is somewhat timing-dependent, debug versions of the program or Windows 95 may not exhibit this behavior at all.