"People without a licensed copy of XP that use this workaround are violating the terms of use agreed to when they purchased the upgrade version of Windows Vista," a Microsoft spokesperson told vnunet.com.
"As such, we believe only a very small percentage of people will take the time to implement this workaround, and we encourage all customers to follow our official guidelines for upgrading to Windows Vista."
The company added that it currently doesn't have any plans to disable the workaround.
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