Reset Trial Counter for Protexis Licensing V2

It is annoying when a trial expires before you had time testing the software. Sometimes it is just enough to reinstall to get a new trial period but usually they hide the information so it is persistent.

I used Sysinternal’s Process Monitor to find out what resources the license manager (PsiService_2.exe) used and cleared them away to get a new fresh trial period.

If you have licensed products using this service you should be careful and keep backups of all values/files.

These instructions are valid for Windows 7 64-bit but just remove “Wow6432Node” for 32 bit systems:

  • Stop “Protexis Licensing V2”-service and the application you are evaluating.
  • Clear registry:
    • HKEY_USERS\.DEFAULT\Software\Protexis\Licenses
    • HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Protexis\Licenses
  • Delete files:
    • C:\ProgramData\KGyGaAvL.sys
    • C:\ProgramData\88AD984CE6.sys (filename varies)
  • Start service
  • Start the application