Problem with windows processes via snmp



We are using nagios to check to see if processes are running in windows 2003 Server. I was having a hard time trying to see if one of our processes was running (it was always bringing back not found), until I ran the snmpwalk command (manually) on hrSWRunName to find that a LOT of other windows processes are not listed there as well. Even though they ARE running!

Anyone experience this?