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"
Okay, it turns out following the advice in the previous post can produce a valid Windows 7. Turns the problem was my version number in the manifest file did not match the actual version of the App.exe. (Stupid stupid mistake).
So here is the manifest file I created. It was too much trouble to convert my manifest file (being XML to something that I can display in blogger, File is Manifest.txt in my BlogFiles folder on skydrive.