The software will not open any of the pes files now
Oh shoot. It looks like the MSI source path was in a binary format in the REG data I exported. Sorry about that. I thought it was all non-specific entries.
You'll need to reinstall the app. Hopefully it will let you do that. Again, sorry I missed that. MSIs are tricky. I should have thought of that stumbling block. If it refuses to uninstall/reinstall, let me know and I'll figure out how to clear it so it will reinstall.