Windows service marked for deletion...

Getting the following error when trying to install a service?

"The specified service has been marked for deletion"

See the following blog entry http://weblogs.asp.net/avnerk/archive/2007/09/05/windows-services-services-msc-and-the-quot-this-service-is-marked-for-deletion-quot-error.aspx

(hint: close all services windows down and kill mmc.exe via task manager if necessary)