This article was previously published under Q165664
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The "MesInqProcEncodingId" application programming interface (API), that issupposed to return the interface ID and the procedural number used inprocedural encoding of a remote procedure call (RPC) interface method to auser specified buffer, always seems to return an interface ID of 00000000-0000- 0000-0000-000000000000} and procedural number of 0 when called with adecoding handle before decoding the buffer. This happens for both fixedstyle and procedural encoding/decoding.
The MesInqProcEncodingId API is not functioning properly.
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack
Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.