I am updating a PowerShell script that manages some .NET assemblies. The script was written for assemblies built against .NET 2 (the same version of the framework that PowerShell runs with), but now needs to work with .NET 4 assemblies as well as .NET 2 assemblies.
Since .NET 4 supports running applications built against older versions of the framework, it seems like the simplest solution is to launch PowerShell with the .NET 4 runtime when I need to run it against .NET 4 assemblies.
How can I run PowerShell with the .NET 4 runtime?
Best Answer
The best solution I have found is in the blog post Using Newer Version(s) of .NET with PowerShell. This allows powershell.exe to run with .NET 4 assemblies.
Simply modify (or create)
$pshome\powershell.exe.config
so that it contains the following:Additional, quick setup notes:
Locations and files are somewhat platform dependent; however will give you an inline gist of how to make the solution work for you.
cd $pshome
in the Powershell window (doesn't work from DOS prompt).C:\Windows\System32\WindowsPowerShell\v1.0\
powershell.exe.config
if yourPowerShell.exe
is being executed (create the config file if need be).PowerShellISE.Exe
is running then you need to create its companion config file asPowerShellISE.Exe.config