Linux emulator
 

Is there a program that will let you run KDE through windows as a emulator?

I am not sure if cygwin supports that or not...You could always try vmware and run an entire distro on your windows instalation.

There's something even more interesting:

http://sourceforge.net/projects/kde-cygwin/

As for emulation, it's either VMWare or VirtualPC.

Steve