Did you install as Administrator? If not, reinstall PEP2 as administrator. Just make sure you have a backup of all stuff in c:\users\All Users\Philips\ProntoEdit Professional 2.0 folder.
If under services.msc, the Pronto Data Service shows up but is not running, try editing it and stating to run as administrator. Then try to start it.
Here is a link for another userís solution to this problem.[Link: remotecentral.com]