[DiapDealer]

I use 7zip as well. I've no idea if it's the default handler for zips or not, I only ever use it via the context menu. I'll take a look, though.

I tend not to make a lot of hard default associations based on file extensions. I'm forever unchecking the "Always use X" when opening a file via the context menu's Open With.

There's probably a ton of ways I could affect the way the MRU list operates if I was willing to do a lot of Windows-specific api programming, or willing to create a ton of cryptic registry entries. But I'm not willing to go there. If I can't do it with Qt, it's not happening.