1. Open up 'windows\system32', show hidden files and delete these files: KGyGaAvL.sys and E409E98A27.sys 2. Delete these keys: 540220473 and 540228105 from all PROTEXIS entries in the registry. I know this topic is a bit old but I found out how recover Corel Paint Shop Pro after the "this copy expired" thing, you see, the first file KGyGaAvL.sys it's okay to delete but the second one E409E98A27.sys you won't find it because the setup program on each installation creates a different file, I mean you can get that E409E98A27.sys file or a file with a different name like in my case that I got a D2FBED2A19.sys file, you can easily find the file that your installation created because it has the same modification date as the KGyGaAvL.sys file, deleting that file along the KGyGaAvL.sys will enable you to reactivate your Corel Paint Shop Pro XI again
