hi im interested in creating a wmc edition install.wim... I did that all good, im confused about activation tho. im done hacking windows and want metro as my htpc front end. so I plan on buying the full pro 8.1 version and getting the wmc upgrade all legit. I was reading a thread earlier where some guy was asking the same question and there was too much confusion going back and fourth. if I install a custom wmc edition will i be able to install/activate with my purchased pro key? then what about the wmc upgrade key?