The target of this WPA, WGA is not the end user but unscrupulous OEMs. OK if you want to run a dodgy copy of Windows/Office/Media Player or whatever you can find some way to defeat the safeguards eventually - then they patch that then you find another way etc..etc.

But if you buy a PC from an unscrupulous OEM and then you get the 'This is not genuine' message a couple months later - the OEM will maybe have sold 100-200 pcs and all their customers are coming back and complaining. They can't afford to do the same continous patching cycle and are forced to use the real thing.

The difference with this by the sound of it is that the software activates properly and is therefore going to work fine, that's not what you get with the Corporate XP versions - they don't activate.