[physfs] Time to stop painting...

[Brian Hook]

> - Someone suggested wrapping the win32 registry in PhysFS...

This should be a separate library, but one that I think would be very 
useful.  If you're so inclined, feel free to jack any of my 
HSystemRegistry bullshit from CC and use it to your heart's content.

Feel free to use POSH of course =)

The only tricky thing I've found with system registry abstraction is 
differentiating between HKCU and HKLM.  There's no "right" answer.

If you put everything into HKLM, then different users can't have 
different configs without "logging in" to the game. If you put 
everything into HKCU, then the app has to be reinstalled multiple 
times for each user.

If you do a combination, e.g. system stuff in HKLM and user stuff in 
HKCU, you have to expose this at the API level.

I'm willing to help with the API design if you'd like.  It should be 
pretty simple, and I'd imagine just a simple API would work fine, e.g. 
open/close registry (specifying application name and whether this is 
user or system level), read/write (endian-safe), privilege checks, and 
that's about it.

Brian