Hi @Clément Notin
Your observation is correct. In IDL_DRSBind response, the server copies the local server properties/capabilities and pid that it copies is its own. This is actually mentioned in the document implicitly in section “126.96.36.199 Server Behavior of the IDL_DRSBind Method “, as follows:
“The server sets ppextServer to a DRS_EXTENSIONS_INT structure whose dwReplEpoch and ConfigObjGUID fields are initialized as described in the previous section (Client Behavior When Sending the IDL_DRSBind Request (section 188.8.131.52)), and whose other fields describe the server.
I have filed a bug against the MS-DRSR document to correct the definition of Pid in section “5.39 DRS_EXTENSIONS_INT”.
Obaid Farooqi - MSFT