Catalina,

Sounds like your Microsoft SNMP agent is not instanciating (spelling)  the
MIB.  You are getting MIB2, but not enterprise specific information from
the agent.    You may have to do some more digging on the Microsoft web
site to see what it takes to configure the SNMP agent to give you the
Microsoft enterprise MIB values.    If you cannot get MIB2 data, check your
community string.

Kind regards,
Stephen Hochstetler              shochste AT us.ibm DOT com
International Technical Support Organization  - Austin
Office - 512-436-8564                      FAX - 512-436-8701