I'd like to use .NET in some PowerShell scripts I'm about to write -- how do I know/declare which version of .NET I'm dealing with when these scripts run?
EDIT: And is it possible to choose against which version of .NET my script will run?
+1
A:
Check this article out: http://blogs.technet.com/b/heyscriptingguy/archive/2009/01/05/how-do-i-check-which-version-of-windows-powershell-i-m-using.aspx
It shows where in the registry you can check to determine this.
spinon
2010-07-27 14:58:39
+3
A:
The .NET version can be inferred from the version of mscorlib. So you can do the following in PowerShell to output the current version of .NET:
$a = [System.Reflection.Assembly]::Load("mscorlib")
$a.GetName().Version
driis
2010-07-27 14:59:44
You don't have to load mscorlib since it's already loaded into the application domain by default: `([AppDomain]::CurrentDomain.GetAssemblies() | ? { $_.GetName().Name -eq "mscorlib" }).GetName().Version`
George Howarth
2010-07-27 18:58:56
easier to just use: [environment]::Version
x0n
2010-07-30 15:19:29
A:
I've found out that you can look for that information in the directory C:\Windows\Microsoft.NET\Framework:
cd C:\Windows\Microsoft.NET\Framework
dir
The directories inside that one will tell you the versions of the framework installed.
Mode LastWriteTime Length Name
---- ------------- ------ ----
d---- 14/07/2009 10:48 3082
d---- 14/07/2009 4:37 v1.0.3705
d---- 14/07/2009 4:37 v1.1.4322
d---- 25/06/2010 17:26 v2.0.50727
d---- 14/07/2009 10:48 v3.0
d---- 14/07/2009 10:48 v3.5
Baltasarq
2010-07-27 15:11:13
+2
A:
To get the .NET version:
[System.Reflection.Assembly]::GetExecutingAssembly().ImageRuntimeVersion
...which is, by default, the version of the CLR the assembly (System.Management.Automation.dll) compiled under.
And no, you cannot choose which .NET version you can run the script under.
George Howarth
2010-07-27 17:34:44
+2
A:
On PowerShell 2.0, just take a peek at the $PSVersionTable variable:
PS> $psversiontable
Name Value
---- -----
CLRVersion 2.0.50727.4927
BuildVersion 6.1.7600.16385
PSVersion 2.0
WSManStackVersion 2.0
PSCompatibleVersions {1.0, 2.0}
SerializationVersion 1.1.0.1
PSRemotingProtocolVersion 2.1
On PowerShell 1.0, use [System.Environment]::Version:
PS> [Environment]::Version
Major Minor Build Revision
----- ----- ----- --------
2 0 50727 4927
Keith Hill
2010-07-27 20:55:17
A:
PS > [Runtime.InteropServices.RuntimeEnvironment]::GetRuntimeDirectory()
C:\Windows\Microsoft.NET\Framework\v2.0.50727\
Shay Levy
2010-08-01 19:55:37