Yeah, 32-bit windows has issues with memory-allocation for the game... it's just not enough. They already did some tweaking in the patch, and said they would do more in the future, but for now, 32-bit and D:OS don't work nicely with each other.
(Somewhere someone posted something about increasing the swap-file size (I think IIRC) to allocate more for the game, and that fixed the crashing for most users... you might want to search for that post. Don't recall where, might even be this thread)
