I would run a malware/anti-virus on entire HD as it seems your system function is hijacked by that website. Get ccleaner (filehippo.com) and run the registry cleaner after virus was deleted. Clean all temp folders including Documents & Settings on all the users you have installed. Then try and restart service again. If that fails from file corrupt or missing, get the install CD for windows, go to Start-Run- type sfc /scannow, should repair and add system missing files deleted or damaged by virus.