How to remove damaged Windows Service

from url

I have successfully used this with: XP and 2003.

you can also use command prompt and delete a service using following command:
sc delete < SERVICE name>

or to create, simply type
sc create
Update:
If you have space in the file path you need to use quotation marks ("). For example:
sc create "MySQL" binpath= "C:\Archivos de programa\MySQL\MySQL Server 5.1\bin\mysqld.exe"