Total Commander

I don't use Alt+F5 because I pack my files to CAB or 7Z and I use external tools for this stuff.

I use only 7z and I installed the TC plugin for that. I love it when I can do everything in TC, with no need of opening other applications. :p

Pity I can't edit files inside the archive like with zip, but I guess there's a price to pay for using such a good archiver.