To disable the "Homegroup Listener " service, under Windows 7:
- Click on Start > type "services.msc" in the search field and press enter.
- In the "Services" window, look for the following entry:
- Homegroup Listener
- Double click and set the "Startup type" as "Disabled"
This services is only requires for Homegroup sharing. You can safely disable it, if you don't use Homegroup sharing.