3.17.4.1.18 AppSpecific (Opnum 24)
The AppSpecific method is received by the server in an RPC_REQUEST packet. In response, the server MUST set the application-specific Message.ApplicationTag.
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[propput] HRESULT AppSpecific( [in] long lAppSpecific );
lAppSpecific: A long integer that contains the application-specific value for the message.
Return Values: The method MUST return S_OK (0x00000000) on success or an implementation-specific error HRESULT on failure.
When processing this call, the server MUST follow these guidelines:
Set the represented Message.ApplicationTag to the value contained in the lAppSpecific input parameter.