mmmmmm well... yeah... kinda...
what you have to remember, is that linux (well, most ports) are running on x86 hardware which is what windows was built for, so emulating the sytstem resources needed by a host OS for windows isn't too tricky.
what you need really, is a PC emulator. this will allow you to run PC apps in a windows desktop in a workbench window.
BUT
horribly horribly slow as the amiga has to emulate all the timings, buses, IRQ's, DMA's... basicly the hardware which windows expects to be there. so guzzels lots (in amiga terms) and lots of memory and hard disk space. it has been known that someone has run Win95 on an amiga. but if they did anything usefull with it i don't really know.
i did manage to install dos 6.2, win3.11, and office on a A4000/030 but was only really usefull enuff to show the windows clock....aaaaand watch it redraw.... and again... and again....
maybe a PPC version? just for a laugh? please?