Check if Get-Process has -Includeusername & is elevated

[hashtable]$processes = @{}
[hashtable]$processParameters = @{}

if( (Get-Command -Name get-process).Parameters.ContainsKey( 'IncludeUsername' ) )
{
    $myWindowsPrincipal = New-Object -TypeName System.Security.Principal.WindowsPrincipal([System.Security.Principal.WindowsIdentity]::GetCurrent())

    if ( $myWindowsPrincipal -and $myWindowsPrincipal.IsInRole([System.Security.Principal.WindowsBuiltInRole]::Administrator ))
    {
        $processParameters.Add( 'IncludeUsername' , $true )
    }
}

## Create hashtable of processes keyed on id so we can do a fast lookup via pid
Get-Process @processParameters | ForEach-Object `
{
    $processes.Add( [uint32]$_.Id , $_ )
}