Example calling WnRT API from PS7 to get Windows version information

get-winrtversion.ps1

# adapted from https://community.idera.com/database-tools/powershell/powertips/b/tips/posts/identifying-windows-version-part-2

# download and unzip latest https://www.nuget.org/packages/Microsoft.Windows.SDK.NET.Ref and get these dlls from the 'lib' folder
Add-Type -AssemblyName ./winrt.runtime.dll
Add-Type -AssemblyName .\Microsoft.Windows.SDK.NET.dll

# define call and information to query
[Collections.Generic.List[System.String]]$names = 'DeviceFamily',
                                                  'OSVersionFull',
                                                  'FlightRing',
                                                  'App',
                                                  'AppVer'

$task = [Windows.System.Profile.AnalyticsInfo]::GetSystemPropertiesAsync($names)

# use reflection to find method definition
$definition = [System.WindowsRuntimeSystemExtensions].GetMethods().Where{
    $_.Name -eq 'AsTask' -and
    $_.GetParameters().Count -eq 1 -and
    $_.GetParameters()[0].ParameterType.Name -eq 'IAsyncOperation`1'
}

# create generic method
$Method = $definition.MakeGenericMethod( [System.Collections.Generic.IReadOnlyDictionary[System.String,System.String]] )

# call async method and wait for completion
$task = $Method.Invoke.Invoke($null, $task)
$null = $task.Wait(-1)

# emit output
$output = $task.Result
($output.AdditionalTypeData.GetEnumerator() | Select-Object -First 1).value