Updating your SMS_DEF.MOF

Theres a good TechNet webcast covering updates to your SMS_DEF.MOF.

Basically, you update the file and drop it into
sms\inboxes\clfiles.src\hinv

SMS will processes the file and your clients will get updated policy, depending on your policy update cycle. If set to an hour, expect new inventory to start coming in within a few hours.