Upgrade to SCCM fails to remove SMS_SQL_MONITOR service

I was upgrading a SMS 2003 SP3 site server to SCCM SP1 earlier and notice that the SMS_SQL_Monitor service was not removed.

This is a know issue when upgrading from SMS 2003 SP2/SP3 to SCCM SP1 (I believe it only occurs in this one instance)

The fix is to manually remove the SMS_SQL_Monitor component after the upgrade.

You can do this two ways.

1. Remove the service from the command line, for example sc delete SMS_SQL_Monitor
2. Delete the component directly from the registry 

Reg Delete HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SMS\COMPONENTS\SMS_SITE_COMPONENT_MANAGER\Component Servers\SiteServerName\Components\SMS_SQL_MONITOR

Reg Delete HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SMS\Tracing\SMS_SQL_MONITOR

As always please backup your registry before making changes.