Get-WgvDotNetVersion

Get-WgvDotNetVersion.ps1

# see https://blogs.msdn.microsoft.com/dotnet/2015/12/09/support-ending-for-the-net-framework-4-4-5-and-4-5-1/
#
param($computer=[environment]::MachineName) 

	Write-Debug "Get-WgvDotNetVersion($computer)"

	$Reg = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey('LocalMachine', $computer)

	$RegKey= $Reg.OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full")

	$dnversion = $RegKey.GetValue("Release")
	switch($dnversion) {
		"378389" { " ($dnversion) 4.5"; break }
		"378675" { " ($dnversion) 4.5.1 (Win8.1 or 2012R2)"; break }
		"378758" { " ($dnversion) 4.5.1 (Win8, Win7 SP1 or Vista SP2"; break }
		"379893" { " ($dnversion) 4.5.2"; break }
		"393295" { " ($dnversion) 4.6 Win10"; break }
		"393297" { " ($dnversion) 4.6 Win8.x, Win7 SP1 or 2012R2"; break }
		"394254" { " ($dnversion) 4.6.1 Win10"; break }
		"394271" { " ($dnversion) 4.6.1 Win8.x, Win7 SP1+ or 2012R2"; break }
		default { "($dnversion) Unknown .NET Framework"; break}
	}