Function Get-OSVersion-withLogging {

    Param (

		[Parameter(Position=0,Mandatory=$False,HelpMessage='Choose the Return Type. Name')]
		[ValidateSet(Name,)]
		[STRING]$QueryType=

	) #end param

## Parameter für Zahl oder Name
## Parameter für Version oder Buildnummer

	BEGIN {
	
		#Clear Error Variable
	    $error.clear()

		$FunctionName = $((($MyInvocation.MyCommand.Name) -split "\.")[0].ToString())
		Write-Host "DEBUG Info - $($FunctionName): Begin Function."

		#Checking if "Write-LogFile" Module was loaded
		IF (Get-Module -All -Name "Write-LogFile") {

			Write-Host "DEBUG Info - $($FunctionName): Write-LogFile - Module exists."

		} #end if

		ELSE {

			Write-Host ""
			Write-Host "DEBUG Info - $($FunctionName): Write-LogFile - Module does not exist!"
			Write-Host "DEBUG Info - $($FunctionName): Please load the Module and try again, running this Function/Module!"
			Write-Host "DEBUG Info - $($FunctionName): Exiting, because of this Issue."
			EXIT	

		} #end else
	
	} #end begin

	PROCESS {

	    #Clear Error Variable
	    $error.clear()

		    IF (((Get-WmiObject -class Win32_OperatingSystem).version) -match 6.1) {

		        write-host "Windows Version: 7 / Server 2008R2 was detected."
		        Set-Variable -Name OSVersion -Value "Win8.0"
		        Return $OSVersion

		    } #end if


		    ELSEIF (((Get-WmiObject -class Win32_OperatingSystem).version) -match 6.2) {

		        write-host "Windows Version: 8.0 / Server 20012 was detected."
		        Set-Variable -Name OSVersion -Value "Win8.0"
		        Return $OSVersion

		    } #end if

		    ELSEIF (((Get-WmiObject -class Win32_OperatingSystem).version) -match 6.3) {

		        write-host "Windows Version: 8.1 / Server 2012R2 was detected."
		        Set-Variable -Name OSVersion -Value "Win8.1"
		        Return $OSVersion

		    } #end elseif

		    ELSEIF (((Get-WmiObject -class Win32_OperatingSystem).version) -match 10.0) {

		        Write-Host "Windows Version: 10 / Server 2016 was detected."
		        Set-Variable -Name OSVersion -Value "Win10.0"
		        Return $OSVersion

		    } #end elseif

		    ELSE {

		        Write-Host "Windows Version:" ((Get-WmiObject -class Win32_OperatingSystem).version) "was detected."
		        Write-Host "ERROR: The Operation-System Version is unknown, cant proceed!"
		        Write-Host "This Script works only with Windows 8, 8.1 and 10 Versions."
		        Set-Variable -Name OSVersion -Value "Error"
		        Return $OSVersion

		    } #end else

	} #end process

	END {
	
		Write-Host "DEBUG Info - $($FunctionName): End Function."
	
	} #end end	
	

} #end function