http://blogs.msdn.com/rflaming/archive/2006/10/01/uac-in-msi-notes-is-this-intentional-if-so-why.aspxThis is the twenty-second in a series of notes about UAC in MSI. Per the earlier caveat , these are just my notes and not an official position from the Windows Installer team . The previous entries Introduce... ...the UAC in MSI Notes series ...my viewen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/rflaming/archive/2006/10/01/uac-in-msi-notes-is-this-intentional-if-so-why.aspx#780094Mon, 02 Oct 2006 02:53:47 GMT91d46819-8472-40ad-a661-2c78acb4018c:780094DevInstall WebLog » Understanding UAC in Vista and Windows InstallerPingBack from <a rel="nofollow" target="_new" href="http://blog.devinstall.com/2006/09/24/understanding-uac-in-vista-and-windows-installer/">http://blog.devinstall.com/2006/09/24/understanding-uac-in-vista-and-windows-installer/</a>http://blogs.msdn.com/rflaming/archive/2006/10/01/uac-in-msi-notes-is-this-intentional-if-so-why.aspx#784667Tue, 03 Oct 2006 11:50:50 GMT91d46819-8472-40ad-a661-2c78acb4018c:784667InstallSite BlogWindows Vista introduces a security concept called User Account Control (UAC) which has multiple impactshttp://blogs.msdn.com/rflaming/archive/2006/10/01/uac-in-msi-notes-is-this-intentional-if-so-why.aspx#787332Tue, 03 Oct 2006 22:17:53 GMT91d46819-8472-40ad-a661-2c78acb4018c:787332Re-inventing The Wheel<p>Generally at Microsoft, we don't like to have &quot;feature take-back&quot; between versions of shipped products.</p>