I have completely forgotten. All this time with Win2k and XP, I can't remember how to change my shell. How do I make Mamewah my shell instead of explorer in Win98?

Oh, and will Mamewah actually run if I do this?
Odonadon
Edit: system.ini, right? I don't have access to any win9x machines at work, so I can't browse through like I'd like to
