I just updated our “Microsoft Forefront Endpoint Protection” client software, this in turn caused several of my scripts to stop working 🙁 Digging led to the discovery that the PATH has changed :-/ omg why change that… Namely I ran two commands weekly on all our servers;

"C:\Program Files\Microsoft Security Client\Antimalware\MpCmdRun.exe" -SignatureUpdate -MMPC"

"C:\Program Files\Microsoft Security Client\Antimalware\MpCmdRun.exe" -scan -scantype 2"

The first foreces Forefront to update it’s definitions straight from the Internet repository, and the second forces a full scan. but the “Antimalware” part of Forefront (or at least MpCmdRun.exe) seem to have moved from; “C:\Program Files\Microsoft Security Client\Antimalware” to “”C:\Program Files\Microsoft Security Client” But why 🙁  – anyhow, if you update your Forefront Endpoint Protection be sure to check any manual scripts you have running.   Downloading the updates manually; You can still download the update file manually (80mb aprox), it’s the same file as for Endpoint Protection –  get them here; http://www.microsoft.com/security/portal/definitions/howtomse.aspx or try this undocumented one (direct download link); http://go.microsoft.com/fwlink/?LinkID=121721