This custom poller shows all relevant Information about Updates and Clients. Data is taken from WSUS. You need the wsus snmp dll that you can download from http://www.rrzn.uni-hannover.de/fileadmin/it_sicherheit/binaries/wsus_snmpd_plugin_2442.tar.gz
See the readme.txt in the tar file. You can open it with Winrar.
I have installed the dll in C:\Program Files\wsussnmpagent on my WSUS Server and created the registry keys on the WSUS as followWindows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\WSUSSNMPAGENT]
[HKEY_LOCAL_MACHINE\SOFTWARE\WSUSSNMPAGENT\CurrentVersion]
"Pathname"=hex(2):43,00,3a,00,5c,00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,00,\
20,00,46,00,69,00,6c,00,65,00,73,00,5c,00,77,00,73,00,75,00,73,00,73,00,6e,\
00,6d,00,70,00,61,00,67,00,65,00,6e,00,74,00,5c,00,57,00,53,00,55,00,53,00,\
5f,00,53,00,4e,00,4d,00,50,00,5f,00,50,00,6c,00,75,00,67,00,69,00,6e,00,2e,\
00,64,00,6c,00,6c,00,00,00
and
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SNMP\Parameters\ExtensionAgents]
"13"="SOFTWARE\\WSUSSNMPAgent\\CurrentVersion"
The SNMP WSUS Pluging supports 32 and 64 Bit Windows Servers.