WC 3.65, VFP 6 SP 5, Win2K Server SP2.
After IIS has been running for longer periods w/o rebooting ( e.g. weeks or more ), I will intermittently see the error

An error occurred during COM object invokation
WC Server Instance not found. Err code = 80070057: The parameter is incorrect.

Clearing all the COM servers from memory using admin.asp gives temporary correction, but the only way to really clear this up is to issue IISRESET or reboot the server.

What is the cause of this error condition and is there any way to eliminate it from occurring? ( Yes, I realize we are dealing with MS here but I am hoping against hope for a long term solution since my clients find it irritating :-) ).

Thanks,
Bill