3.1.4.1.16 wsman:OptimizeEnumeration
The WS-Management specification defines the optional element OptimizeEnumeration to allow a client to request that initial results be returned in the enumeration response, as specified in [DMTF-DSP0226] section 5.2.3.
Web Services Management Protocol Extensions for Windows Server 2003 servers SHOULD ignore the OptimizeEnumeration element.