Hello If you want to change some settings and PSpad is installed into Program files folder, you have to run PSPad as admin.
To fix wrong registry settings integration, switch to DLL, confirm, switch to back to registry and confirm (or uncheck integration, confirm and set it back again) -- <https://forum.pspad.com/read.php?4,71034,71035> PSPad freeware editor https://www.pspad.com
