Remove a Management Group from a Multi-Homed MOM 2005 Agent
If you have changed your MOM configuration and need to remove a Management Group from an agent that is multi-homed, you can run the following command line from your agent computer:
msiexec /i "\\server\share\momagent.msi <file:///\\server\share\momagent.msi>" /qn
MANAGEMENT_SERVER="MSName" CONFIG_GROUP="NameOfTheCGToRemove"
ACTIONSUSER="momaction" ACTIONSPASSWORD="Password"
ACTIONSDOMAIN="DOMAIN" CONFIG_GROUP_OPERATION="RemoveConfigGroup"
REINSTALL="ALL"
Just be sure to fill in your specific information. :)