Actually, the popular KMS_VL_ALL crack for Windows provides x64, x86 and A64 dll hooks to allow a localhost activation. It would be interesting to see if this works well on the Pi.
Sadly enough it has reached a point where I just don't quite care about Windows enough any more to try it myself. How in the world did that happen? I used to love all this stuff.
Possibly because I realize that even if it is cracked, it still feels like an advert infested demo that I really don't want to actually use any more. Nice work Microsoft.