As far as stopping services goes, Access has a facility to run external commands (
Shell()).
As far as actually stopping a service goes (This is actually a Windows question but hey) the command and syntax is :
If you look in the Services applet you can see both the long names, and the shorter names, of each service. This command will take either.
As Stewart says, we can't do this for you, but I can give you the tools as you've asked, and I can understand from your latest post what you're after I think.