After applying an update that moved my vSphere server to v4.1.0, 491557, the alerts that use the "run a command" action to run BAT scripts have stopped working. The alert does trigger and when I add an "send e-mail" as another action on the same Alert, the e-mail is delivered without issue. I have created new alerts and new ultra-simple scripts and those aslo. There are no errors in the Windows Event Log and nothing immediately obvious in the VMware logs.
Any suggestions on what to test next?