What version of Windows Management Framework is installed?

Solution 1:

See this documentation from Microsoft:

https://docs.microsoft.com/en-us/powershell/scripting/setup/installing-windows-powershell?view=powershell-5.1

In the "Upgrading existing Windows Powershell" section, it says specifically:

The installation package for PowerShell comes inside a WMF installer. The version of the WMF installer matches the version of PowerShell; there's no stand alone installer for Windows PowerShell.

I think this is the answer guys. Run $PSVersionTable.PSVersion to get the version.

Solution 2:

I know this is an old question, but for others that find this from a Google Search:

I would like to argue that $PSVersionTable.PSVersion is the most reliable indicator of the version of WMF. See below examples.

Windows 7 fresh install:

Name                           Value
----                           -----
PSVersion                      2.0
WSManStackVersion              2.0
CLRVersion                     2.0.50727.5420
BuildVersion                   6.1.7601.17514
PSCompatibleVersions           {1.0, 2.0}
SerializationVersion           1.1.0.1
PSRemotingProtocolVersion      2.1

Windows 7 after .NET 4.5 and WMF 4 installation:

Name                           Value
----                           -----
PSVersion                      4.0
WSManStackVersion              3.0
SerializationVersion           1.1.0.1
CLRVersion                     4.0.30319.18408
BuildVersion                   6.3.9600.16406
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0}
PSRemotingProtocolVersion      2.2

Windows 7 after WMF 5 installation:

Name                           Value
----                           -----
PSVersion                      5.0.10586.117
WSManStackVersion              3.0
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.10586.117
CLRVersion                     4.0.30319.18408
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

Windows 10, which includes WMF 5 out of the box:

Name                           Value
----                           -----
PSVersion                      5.0.10586.122
WSManStackVersion              3.0
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.10586.122
CLRVersion                     4.0.30319.42000
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

So as you can see, the version for $PSVersionTable.WSManStackVersion.Major only seems to change on the WMF 4 install and then stays at 3. While $PSVersionTable.PSVersion.Major seems to report the accurate version of WMF.

---

Solution 3:

In PowerShell it's available from $PSVersionTable.WSManStackVersion.Major

My home Windows 7 system:

PS C:\Users\Brian> $PSVersionTable

Name                           Value
----                           -----
CLRVersion                     2.0.50727.5485
BuildVersion                   6.1.7601.17514
PSVersion                      2.0
WSManStackVersion              2.0
PSCompatibleVersions           {1.0, 2.0}
SerializationVersion           1.1.0.1
PSRemotingProtocolVersion      2.1


PS C:\Users\Brian> $PSVersionTable.WSManStackVersion.Major
2
PS C:\Users\Brian>

Then after installing a newer Windows Management Framework:

PS C:\Users\Brian> $PSVersionTable

Name                           Value
----                           -----
PSVersion                      4.0
WSManStackVersion              3.0
SerializationVersion           1.1.0.1
CLRVersion                     4.0.30319.34209
BuildVersion                   6.3.9600.16406
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0}
PSRemotingProtocolVersion      2.2


PS C:\Users\Brian>