The most likely reason that the PC (Windows) does not respond to SNMP is that the SNMP service is probably not installed.

Micro$oft supplies SNMP with Windows NT and derivatives (on the OS install CD's) , but it is not installed by default - you can install it by going into the control panel -> add / remove programs -> Add/remove Windows components -> Management & Monitoring services (in XP) -> SNMP.

You will need to configure the community strings - leave the default as "public", and do not enable WRITE, unless you know how that will be used.

There are english-like equivalents for all OID's. You will have to find them by R'ing the FM.