FOLDER_DOTNET_30

InstallShield 2022 » InstallScript Language Reference

The FOLDER_DOTNET_30 system variable stores the fully qualified path of the folder where the Microsoft .NET Framework 3.0 redistributable files are located:

<WINDIR>\Microsoft.NET\Framework\v3.0

This system variable is read-only. If you attempt to assign a value to it, a compiler error results.