I've created a IS 2009 project. From this project I create two builds, one that includes .NET 3.5 SP1 (for distribution via CD) and another that downloads .NET 3.5 SP1 (for distribution via a download)...these were configured through the Release Wizard. These are built as a single EXE. The .Net framework is configured as a prerequisite. I've updated the version number and Package Code prior to performing the build, so they will be treated as a minor upgrade. Everything else is the same.
When the downloadable version is installed over a previous installation that included the .NET framework within the install package, the installer does NOT detect that it should perform a minor upgrade.
If the version that included the .NET framework within the setup package is installed over an install that included the .Net framework, then the installer detects it as a minor upgrade.
Is there a way to always make the installer perform a minor upgrade? Is my approach wrong? Thanks,
