FOLDER_DOTNET_11
InstallShield 2024 » InstallScript Language Reference
The FOLDER_DOTNET_11 system variable stores the fully qualified path of the folder where the Microsoft .NET Framework 1.1 redistributable files are located:
<WINDIR>\Microsoft.NET\Framework\v1.1.4322\
This system variable is read-only. If you attempt to assign a value to it, a compiler error results.