不知道 CSE 6.3 是不是还有这个问题，如果还有的话就用这个补丁吧。
Sorry about late answer, my ISP was crapping...
So for all the folks that have the Crash when starting the script editor, a simple and dumb solution is to delete completely the CSE to be certain you don't have anything from previous version then reinstall the necessary files in this order (well at least that's what I did).
2 DotNet Client
3 C++ redist thingie
6 Visual styles.
Confirmed: FXaa & ENB crash the CSE when the script editor is launched...
I created a small batch file
And I put all those files in a subfolder so when I want it activated, I just copy them back...
You can simply add those lines on top of Launch CSE.bat