Ok guys, lets get the facts straight.
You can't "emulate windows", you could emulate the windows enviroment, this very well may be what SoftWindows does, Think of WINE on *NIX, You know what WINE stands for? WINE IS NOT AN EMULATOR, its recursive. Now, how WINE works is that it contains common windows DLLs and a registry structure, it executes the binaries, and hookes into them, directing them to the propper DLLs and registry keys. (This is a dumbed down version, but you get the idea.)
There is some other software, and I'm tired atm and can't think of the name, but pretty much it lets you install other operating systems inside of windows or linux, and it just redirects any calls to the CPU in its protected mode, so it doesn't really emulate anything (Other than video, network and sound.), so its fairly fast.
Now, RPC and VPC work by actully EMULATING, pretending to be (read: taking x86 instructions and translating them into PPC instructions) a x86 CPU.
Now the first two types of "emulators" wouldn't work on OS X right now, becuase of the fact that they would require a x86 CPU in your Mac. SoftWindows, was in fact, a combination of the third and first types of emulators I described. I may be wrong on how SoftWindows works, but my descriptions of the three types of "emulators" are dead on.
-Tim
You can't "emulate windows", you could emulate the windows enviroment, this very well may be what SoftWindows does, Think of WINE on *NIX, You know what WINE stands for? WINE IS NOT AN EMULATOR, its recursive. Now, how WINE works is that it contains common windows DLLs and a registry structure, it executes the binaries, and hookes into them, directing them to the propper DLLs and registry keys. (This is a dumbed down version, but you get the idea.)
There is some other software, and I'm tired atm and can't think of the name, but pretty much it lets you install other operating systems inside of windows or linux, and it just redirects any calls to the CPU in its protected mode, so it doesn't really emulate anything (Other than video, network and sound.), so its fairly fast.
Now, RPC and VPC work by actully EMULATING, pretending to be (read: taking x86 instructions and translating them into PPC instructions) a x86 CPU.
Now the first two types of "emulators" wouldn't work on OS X right now, becuase of the fact that they would require a x86 CPU in your Mac. SoftWindows, was in fact, a combination of the third and first types of emulators I described. I may be wrong on how SoftWindows works, but my descriptions of the three types of "emulators" are dead on.
-Tim