I’m John Macintyre, the Group Program Manager for Live Mesh Client Platform & Runtime (it fits on a business card if you use 6 point type). I wanted to talk about how Live Mesh client install works, and address the questions we’ve seen about why User Account Control (UAC) must be enabled on Windows Vista in order for Live Mesh to work.
The design challenge we faced with Live Mesh client deployment was to make it simple to install, while providing rich client experiences that are deeply integrated with the device experience i.e. today your Windows Shell, tomorrow your Mac, Mobile device etc.
It’s worth taking a quick look at the client footprint before we cover how it is deployed. The Live Mesh client can be separated into two distinct components:
Full Article - http://blogs.msdn.com/livemesh/archive/2008/04/28/get-mesh-and-why-we-require-uac.aspx