"Microsoft claims that it has seen what the company referred to as very good results in fighting Windows piracy with Windows Vista, although it has failed to elaborate on the subject. At the Microsoft Financial Analyst Meeting 2008, Bill Veghte, Senior Vice President, Online Services & Windows Business Group, indicated that the anti-piracy mitigations built in Windows Vista by default helped curb
the piracy affecting the operating system. Additionally, with the release of Service Pack 1, the Redmond giant tackled the most widespread workarounds designed to permit the pirating of Vista RTM."

Source: Full Article @ Softpedia