Seems like the path is for some reason incomplete. You can try to fix it in the registry under "HKEY_CLASSES_ROOT\CursorChanger.crs.1" yourself (if you know how that works). Or you can try re-installing the cursor changer, possibly into a custom folder that has a short name with no spaces like "C:\changer".

Trying to open a .crs file gives an error.
The error reads
RunDLL
There was a problem starting C:\PROGRA~1\RealWorld
The specified module could not be found
Is there a way to fix this?