When attempting to install or uninstall Content Server or the related services on a Windows box you may occasionally run into some problems. Whatever the scenario is, you may get to a place where you need to manually uninstall the services.
Note: As you will recall, uninstalling Content Server is generally a very simple task of finding the bin directory on the command line and issuing this command:
This should cleanup everything. When it doesn't, you can attempt these maneuvers:
-cs install-\bin\IdcServerNT -uninstall -cs install-\admin\bin\IdcAdminNT -uninstall -ibr install-\bin\IdcRefineryNT -uninstall
If this doesn't work, you can also try this beauty:
sc delete "service name"
And finally, you can go hack the registry at your own risk: