After doing several service packs on both OfficeScan and Worry-Free Business Security that not all PCs are updating in a timely manner. After a bit of poking around, I found the appropriate command to use.
Psexec into the PC with a command prompt and paste the entire command (quotes included). This combination of switches will run the updater and do it silently (otherwise you’ll be prompted to press Enter to continue). There are other switches available but they don’t seem to work properly on a remote command prompt (they do however function fine on the localhost console).
“C:\Program Files (x86)\Trend Micro\Client Server Security Agent\PccNtMon.exe” -us