Protexis Licensing Service
PSIService.exe = "Protexis Licensing Service", and is used by Corel...
Part of the Protexis (http://www.protexis.com) copy protection and license management software. This will typically be installed by other software that uses this to protect itself from being illegally copied. This is found in Paint "Shop Pro Photo XI"... This startup entry is installed as a Windows NT, 2000, 2003, or XP service. You can disable this by going to
START > CONTROL PANEL > ADMINISTRATIVE TOOLS > SERVICES
Find ProtexisLicensing in the list, double click it, then change the "Startup type:" to DISABLED