We have a project which requires .NET 2.0 SP1, and we use the built in prerequisite for our basic MSI project.
However, when we try to install this deployment onto a machine that is running .NET 3.5 SP1 (which has been recently released as an optional Windows upgrade), the setup.exe complains during the pre-requisite installation that it cannot install .NET 2.0 SP1 and asks whether it should continue the installation.
This is because installing .NET 3.5, uninstalls .NET 2.0 SP1 and installs .NET 2.0 SP2. So the pre-requisite installer thinks that .NET 2.0 SP1 is NOT installed, but it cannot install SP1 because a later version of .NET 2.0 is installed!
Is this a Microsoft bug or an InstallShield bug? Any one know what can be done about it?
