How UAC in Vista will impact your Setup (updated Oct 3)
Windows Vista introduces a security concept called User Account Control (UAC) which has multiple impacts on Windows Installer (MSI) based setups. Robert Flaming, Product manager on the MSI team at Microsoft, is posting a series of articles on his blog that explain what these changes are, and how they may break existing setups. So this is not about new features in MSI 4 that you may want to add to your setup some time in the future - it is about what you need to do NOW to make sure the setups you build TODAY will work on Vista.
Update (Sep 26): additional articles are available
Update (Oct 3): even more articles and some Q&A
The following article are already available:
Introduction
Architecture Insights
Common Package Mistakes
More Architectural Insights
Conversations with Customers