Open .omwaddon files without needing to open openmw-cs first
Tested in windows.
When I tried "open with"->"openmw-cs.exe", and tick the "use this app for all .omwaddon files", the omwaddon failed to open up.
Attempting to open the .omwaddon directly by left-clicking will only bring up the command window briefly and then nothing happens.
So right now, the only way is, to open up openmw-cs.exe first and then open your .omwaddon files.
(RM-4202 from redmine: created on 2017-11-09 by Randy Davin, )