Here's the thing.
There is an Autocad script file, extension .scr which by default opens in Notepad. It is a regular text file, in which I need to do some edits so I want it to open in Vim.
Upon going to Windows Explorer / Tools / .... / that list of file extensions, I see that it's not there (?!).
Not under .scr, not under anything remotely similar to Autocad, Autodesk, ... anything.
So I'd like to know, where could it be and how can I change it to Vim for the default open association?
Edit: Also, when I right click on it in Windows Explorer, there is no Open With ... option, so no luck there. Completely dumbfounded here.
Edit2: Solved the problem. Deleted everything related (and remotely related) to .scr in Registry, and it defaulted back to gvim, as my text editor. Don't know what caused it, nor what exactly fixed it. Nothing seemed to be associated with .scr in Registry, nor anything similar.
If anyone knows something about this, put it down as an answer.