As you know…. this setting must be enabled for many agents under OpsMgr 2007.
Primarily – for Active Directory, Exchange, Cluster node servers, SMS, and Sharepoint 2007 server agents.
We have a ton of choices out there on how to easily enable this setting for multiple computers at once:
And two different PowerShell examples: http://www.systemcenterforum.org/downloads/#OperationsManager2007