Following up on bkbk's first reply, if that's so (you can't start or stop), is the service itself set to be disabled? If not, you may not be logged into windows as an administrator (your account may not be in the windows administrators group) .
If the CF service IS itself set to be disabled, you'd of course need to correct that to start cf as a service. (Again, you'd need to be an admin to do that.)
If instead you want to start it without running as a service (or to see if it will start at all), you can do that as bkbk proposes in his second reply. (I was writing to propose the same as this second point when his came in.) This is not the way to run this in prod, of course. When you logout, any programs/processes you started other than as services will stop. We're just offering it as another diagnostic to consider.