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Event ID: 1004 Source: perflib

The instance length of an object returned by Extensible Counter DLL "Perfctrs.dll" for the "Tcpip" service was incorrect. The sum of the instance lengths plus the object definition structures did not match the size of the object. Performance data returned by counter DLL will be not be returned in Perf Data Block. The object title index of the bad object is the first DWORD in the attached data.
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