Issue with the lion editor

[cidd]

I cant use the lion editor anymore for some reason. I changed the save file name to lioneditor.BIN just like I used to but the editor stays grayed out for some reason. This issue has never occurred before and on my old comp. The only difference maker I could see there being is that I'm running this on windows 10 now instead of windows 7.

EDIT: Well I was able to get it sorted by my self - apparently I had to reinstall .net framework manually and I got it to work.