No, I mean open Registry Editor and look for all of the registry info of Process Lasso. Use open registry key or Custom Uninstall feature from Revo Uninstaller (if you had monitored the installation previously), that would ease the job for you. After that, export and save them as .reg files. Keep this files save. When you re-install your Windows, merge these files onto system registry.
But again, I have never tried it so I am not sure if it will work.