SharePoint 2010 Management Shell does not load with Windows PowerShell 3.0

 

Let’s say that you install PowerShell 3.0 by by installing the Windows Management Framework (WMF) 3.0 from

• Description of Windows Management Framework 3.0 for Windows 7 SP1 and Windows Server 2008 R2 SP1 https://support.microsoft.com/kb/2506143
• Description of Windows Management Framework 3.0 for Windows Server 2008 SP2 https://support.microsoft.com/kb/2506146

However, after you install WMF 3.0 and PowerShell, you may receive one or both of the following error messages when you start SharePoint 2010 Management Shell:

1. The local farm is not accessible. Cmdlets with FeatureDependencyId are not registered.
2. A PlatformNotSupportedException occurred while trying to acquire the local farm: System.PlatformNotSupportedException: Microsoft
   SharePoint is not supported with version 4.0.30319.586 of the Microsoft .Net Runtime.
   at Microsoft.SharePoint.Administration.SPConfigurationDatabase.get_Farm() at Microsoft.SharePoint.Administration.SPFarm.FindLocal(SPFarm& farm, Boolean& isJoined)

Cause

.Net 4.5 comes with PowerShell 3.0 which seems to break SharePoint 2010 PowerShell administration. That is because PowerShell 3.0 loads CLR 4.5 and
SharePoint 2010 needs CLR 3.5 (AKA 2.0).

How do you get around it:

• Type "PowerShell -v 2" (without quotes). This loads PowerShell version 2, and you should be able to use it for SharePoint. Just type 'Exit' to get back to PowerShell v3
• Add '-version 2.0' parameter when executing PowerShell 3.0, and SharePoint integration should work.
• Change the Target field value for SharePoint 2010 Management Shell to the following:

C:\Windows\System32\WindowsPowerShell\v1.0\PowerShell.exe -Version 2.0 -NoExit " & ' C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\CONFIG\POWERSHELL\Registration\\SharePoint.ps1 ' "

See KB 2796733

Note: This is not an issue with Windows PowerShell. This is an issue with the SharePoint 2010 compatibility with PowerShell 3.0.

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