I still think it may be a permissions issue as some of the things Yawcam will do on start-up are privileged actions.
What happens if you run the service in debug mode?
First, stop the Yawcam service.
Next, start a command prompt. Unless you start by right-clicking and selecting "Run As" this will run under your logged in user's context.
Now, navigate to where Yawcam is installed, mine is under "C:\Program Files (x86)\Yawcam\"
Once there run
- Code: Select all
and see what complaints (if any) come up.
If none come up then the service should be running (under that user context) and you can try connecting via http etc.
If something does come up and it's not obvious then post it up.