You cannot remove a server that is a target bridgehead

Trying to uninstall Exchange server 2003 after upgrade to SBS 2008
You cannot remove a server that is a target bridgehead
goto new SBS 2008 Server
syart Exchange Management Shell
get-help routing |more.com
use this command to get the name of the Routing Group Connector mibe was KC-LOGIN-SERVER
Get-RoutingGroupConnector
Then remove the connector
Remove-RoutingGroupConnector KC-LOGIN-SERVER
You cannot remove a server that is a target bridgehead
goto new SBS 2008 Server
syart Exchange Management Shell
get-help routing |more.com
use this command to get the name of the Routing Group Connector mibe was KC-LOGIN-SERVER
Get-RoutingGroupConnector
Then remove the connector
Remove-RoutingGroupConnector KC-LOGIN-SERVER