I'm pasting the photo. I have no more info than this. Reaper works just fine after that, it seems. Keep the good work!
the rearoute.dll is referenced by some other program? or set to readonly by an crazy antivirusprogram thatbthink that rearoute unleashes hell on earth, or something like that. 🥴
you also get this when updating with Reaper open. In windows check the task manager. Rebooting before updating can help I think as it will close apps.
Hmph. It's like walking through a field and leaving the gate open behind you.