Even Winamp added its context menu items, is there a way to manually do the same with WMP in the registry or whatnot?

Just did exactly what you said and it didn't change anything.

Yes, WMP is set as the default for every video format. Just to make sure though, I did what you suggested for each of the videos in one of my folders that contained 4 or 5 different formats (each was...

After my recent reinstallation of Windows 10, I no longer get the context menu options "Play with Windows Media Player" and "Add to Windows Media Player List" when I right click a folder containing...