I found this cool tutorial, which will change Home Edition into pro Edition in a matter of minutes. It was tested on russian and german windows versions, but I think it also works on English versions...
Instructions:
Go to Start > Run
Type "regedit" in Run dialog to bring up Registry Editor
Backup registry, just incase something wierd happens (Go to File > Export > Write any name, choose any folder and press "Save")
Go to "HKEY_LOCAL_MASHINE" > "SYSTEM" > "ControlSetXXX" (XXX = highest number, e.g can be ControlSet002) > Control > ProductOptions
When u do that, you should see "ProductSuite" in the right window. Right click it and press "Delete"
Right click anywhere in right window and select "New" > "DWORD Value". Name it "Brand" and value data should automatically be "0". If it's not, right click it, choose Modify and type "0" in value data text box.
Close Registry Editor and restart computer
During reboot, press F8 to get a number of options and there choose "Load latest successfull configuration" (something like that, sorry I don't know exactly what it says, because I translated it from Russian).
That's it.
Microsoft charge much more money for Pro edition, when you can just buy (or download from dreatica.cl) Home edition and make Pro out of it. You will have all the features that Pro users have. It will even say "Windows Professional Edition" during reboot...
