#PowerShell 3.0 Script
#This Script will check the Windows Event Log for unusual activity.
#Please use the "_Settings.ini"-File for configurations.

#Digital Data
#Ludwig-Rinn-Strasse 16
#35452 Heuchelheim
#Tel.: 0641 / 202360
#E-Mail: info@didalog.de

#Version Number: 1.2.0.0
#Version Date: 06.01.2017

#Requires –Version 3.0

#-----------------------------------------------------------------------------------------------------#
######################################## check for arguments ##########################################
#-----------------------------------------------------------------------------------------------------#

Param (

	[Parameter(Mandatory=$False,HelpMessage='Optional Parameter. By calling this Script with Parameter "-argOperationMode install", you can install and configure it. Default Value is "background".')]
	[ValidateSet("install","background")]
	[String]$argOperationMode="background"

) #end Param

Write-Host ""
Write-Host "DEBUG Info: Argument Call for OperationMode (-argOperationMode) is:"
Write-Host "DEBUG Info: $argOperationMode"

#-----------------------------------------------------------------------------------------------------#
###################################### add additional assemblys #######################################
#-----------------------------------------------------------------------------------------------------#

Add-Type -AssemblyName System.Windows.Forms		-ErrorAction Stop
Add-Type -AssemblyName PresentationCore 		-ErrorAction Stop
Add-Type -AssemblyName PresentationFramework	-ErrorAction Stop

#-----------------------------------------------------------------------------------------------------#
############################################ set variables ############################################
#-----------------------------------------------------------------------------------------------------#

Set-Variable -Scope Global -Name ScriptName				   -Value (($MyInvocation.MyCommand.Name) -split "\.")[0].ToString()
Set-Variable -Scope Global -Name ScriptPath				   -Value (Split-Path ($MyInvocation.MyCommand.Path))
Set-Variable -Scope Global -Name ConfigFile                -Value (Get-ChildItem -Path "$ScriptPath" -Recurse -Filter "$ScriptName`_Settings.ini" -File -Force).FullName
Set-Variable -Scope Global -Name ConfigValues              -Value $NULL
Set-Variable -Scope Global -Name Timestamp1                -Value $(Get-Date -Format 'ddMMyyyy')
Set-Variable -Scope Global -Name Timestamp2                -Value $(Get-Date -Format 'ddMMyyyy_HHmmss')
Set-Variable -Scope Global -Name Timestamp3                -Value $(Get-Date -Format 'ddMMyyyy_HHmmssffff')
Set-Variable -Scope Global -Name Timestamp4                -Value $(Get-Date -Format 'yyyyMMdd HH:mm:ss.fff')
Set-Variable -Scope Global -Name Counter1                  -Value 0
Set-Variable -Scope Global -Name LogFile                   -Value "$ScriptName`_$Timestamp2.log"
Set-Variable -Scope Global -Name LogFileKeepTime           -Value 60
Set-Variable -Scope Global -Name LogPath                   -Value $NULL
Set-Variable -Scope Global -Name LogPaths                  -Value $NULL
Set-Variable -Scope Global -Name Module                    -Value $NULL
Set-Variable -Scope Global -Name Modules                   -Value ("Write-LogFile","Read-ConfigFile","Remove-Item-withLogging","Start-windreamSession-withLogging","Restart-windreamClient-withLogging")
Set-Variable -Scope Global -Name ModuleOverrideSourcePath  -Value $NULL
Set-Variable -Scope Global -Name ModuleDefaultSourcePath   -Value $NULL
Set-Variable -Scope Global -Name ModuleHKLMRegistryPath	   -Value "HKLM:\SOFTWARE\Digital Data\Modules"
Set-Variable -Scope Global -Name ModuleHKCURegistryPath	   -Value "HKCU:\SOFTWARE\Digital Data\Modules"
Set-Variable -Scope Global -Name Item                      -Value $NULL
Set-Variable -Scope Global -Name Items                     -Value $NULL
Set-Variable -Scope Global -Name argOperationMode	       -Value $argOperationMode
Set-Variable -Scope Global -Name MessageBoxBody            -Value $NULL
Set-Variable -Scope Global -Name MessageBoxTitle           -Value $NULL
Set-Variable -Scope Global -Name MessageBoxButtonType      -Value $NULL
Set-Variable -Scope Global -Name MessageBoxIcon            -Value $NULL
Set-Variable -Scope Global -Name MessageBox                -Value $NULL
Set-Variable -Scope Global -Name Result		               -Value $NULL

Set-Variable -Scope Global -Name UICultureForce            -Value $($Host.CurrentUICulture.Name)
Set-Variable -Scope Global -Name UICultureData			   -Value @{"MessageBoxBody1_1"="Would you like to Test the windream Connectivity?";
                                                                    "MessageBoxBody1_2"="If the Test fails, a restart of the windream client components will be attempted (";
                                                                    "MessageBoxBody1_3"="Try(s) overall).";
																    "MessageBoxTitle1_1"="ScriptName: ";
                                                                    "MessageBoxTitle1_2"="- Module/Section: pre Connection Test";

																    "MessageBoxBody2_1"="No windream Restart Try(s) needed, windream is still working!";
																    "MessageBoxBody3_1"="After";
                                                                    "MessageBoxBody3_2"="windream Restart Try(s), windream is now working again!";
																    "MessageBoxBody4_1"="Its seems I have Dyscalculia, but windream is working, so everything is alright!";
																    "MessageBoxTitle2_1"="ScriptName: ";
                                                                    "MessageBoxTitle2_2"="- Module/Section: Connection Test";

																    "MessageBoxBody5_1"="No windream Restart Try(s) possible, windream is still not working!";
                                                                    "MessageBoxBody5_2"="Please contact your Administrator!";
                                                                    "MessageBoxBody5_3"="He should check the LogFile:";
																    "MessageBoxBody6_1"="After ";
																    "MessageBoxBody6_2"=" windream Restart Try(s), windream is still not working!";
																    "MessageBoxBody6_3"="Please contact your Administrator!";
																    "MessageBoxBody6_4"="He should check the LogFile:"
																    "MessageBoxBody7_1"="Its seems I have Dyscalculia, but windream is not working, so nothing is alright!";
                                                                    "MessageBoxBody7_2"="Please contact your Administrator!";
                                                                    "MessageBoxBody7_3"="He should check the LogFile:";
																    "MessageBoxTitle3_1"="ScriptName: ";
                                                                    "MessageBoxTitle3_2"="- Module/Section: Connection Test";}

#-----------------------------------------------------------------------------------------------------#
############################################ set functions ############################################
#-----------------------------------------------------------------------------------------------------#

Function Load-PowerShellModule {

  	<#
	  	.SYNOPSIS
	  		Function will load external - additional - PowerShell Modules into current PSSession.

	  	.DESCRIPTION
	  		By working with Modules, this Function is necessary to load external Modul Functions into the current PowerShell Session.
			In a productive Enviroment it is recommanded to let this Function set the Registry Key in HKLM for the ModuleSourcePath.
			In develepment and Test Enviroment it is possible, to work with distributed Folders with different Modules. Therefor the Parameter
			"ModuleOverrideSourcePath" and the preset Variable "ModuleDefaultSourcePath" are made for.
            After a successful Import of a Module, Function will Return $True, otherwise a $False.

	  	.REQUIREMENT General
			PowerShell V3

		.REQUIREMENT Assembly
			System.Windows.Forms, PresentationCore, PresentationFramework

		.REQUIREMENT Variables
			ModuleOverrideSourcePath, ModuleName, Path, Paths, PathTest, FileTest, Result

		.REQUIREMENT Variables preSet
			ScriptName, ScriptPath, ModuleDefaultSourcePath, Counter

		.REQUIREMENT Functions
			<NONE>

		.VERSION
			1.0.0.0 / 11.09.2016

	  	.PARAMETER ModuleName
			Give the Module Name, you want to load into the current PSSession (without File-Extension).

		.PARAMETER ModuleOverrideSourcePath
			Optional Parameter. By giving the ModuleOverrideSourcePath, Function will not check other Paths for the Function you want to load.

		.PARAMETER ModuleFileExtension
			Optional Parameter. Give the Module File-Extension (regular: "psm1") without a dot ("."), this is just for the checking routine, not the Import itself.')]

		.PARAMETER Force
			Optional Parameter. By using the Force Parameter, Module will be unload and reload.

		.EXAMPLE
	  		Load-PowerShellModule -ModuleName Write-LogFile -ModuleFileExtension psm1

		.EXAMPLE
	  		Load-PowerShellModule -ModuleName Write-LogFile -Force

	  	.EXAMPLE
	  		Load-PowerShellModule -ModuleName Write-LogFile -ModuleFileExtension psm1 -ModuleOverrideSourcePath D:\ScriptFiles\Modules
	#>

	[cmdletbinding()]

    Param (

       [Parameter(Position=0,Mandatory=$True,ValueFromPipeline=$True,HelpMessage='Give the ModuleName, you want to load into the current PSSession (without File-Extension)')]
	   [ValidateNotNullOrEmpty()]
       [String]$ModuleName,

       [Parameter(mandatory=$False,HelpMessage='Optional Parameter. By giving the ModuleOverrideSourcePath, Function will not check other Paths for the Function you want to load.')]
	   [ValidateNotNullOrEmpty()]
       [String]$ModuleOverrideSourcePath,

       [Parameter(mandatory=$False,HelpMessage='Optional Parameter. Give the Module File-Extension (regular: "psm1") without a dot ("."), this is just for the checking routine, not the Import itself.')]
	   [ValidateNotNullOrEmpty()]
       [String]$ModuleFileExtension = "psm1",
	   
	   [Parameter(mandatory=$False,HelpMessage='Optional Parameter. By using the Force Parameter, Module will be unload and reload.')]
       [Switch]$Force
	   
	) #end param

	
	Process {

        #Clear Error Variable
        $error.clear()
		
		#If FileExtension was given, remove it! Because otherwise "Import-Module" Function will have trouble importing.
		$ModuleName = $ModuleName.Replace(".$ModuleFileExtension","")
		Write-Host "DEBUG Info - Load-PowerShellModule: You want to load Module $ModuleName"
		
		#Try this if $ModuleOverrideSourcePath was given by calling the function 
		IF ((([String]::IsNullOrWhiteSpace($ModuleOverrideSourcePath)) -ne $true) -and (([String]::IsNullOrEmpty($ModuleOverrideSourcePath)) -ne $true)) {

			Write-Host ""
			Write-Host "DEBUG Info - Load-PowerShellModule: Function has been called with 'ModuleOverrideSourcePath' Parameter input!"
			Write-Host "DEBUG Info - Load-PowerShellModule: Testing for existence: $ModuleOverrideSourcePath\$ModuleName.$ModuleFileExtension"
			$PathTest = Test-Path -Path "$ModuleOverrideSourcePath\$ModuleName.$ModuleFileExtension" -PathType Leaf

			IF ($PathTest -eq $true) {
			
				Write-Host "DEBUG Info - Load-PowerShellModule: $ModuleOverrideSourcePath and ModuleName seems to exist."
				Write-Host "DEBUG Info - Load-PowerShellModule: Trying to import Module: $ModuleName.$ModuleFileExtension"

				Try {
					
					$Result = Import-Module $ModuleOverrideSourcePath\$ModuleName -Verbose -DisableNameChecking -Scope Global -Force:$Force -PassThru -ErrorVariable Error -ErrorAction SilentlyContinue

					IF ("$Result" -eq "$ModuleName") {

						Write-Host "DEBUG Info - Load-PowerShellModule: Successfully loaded Module: $ModuleName.$ModuleFileExtension"
						Return $True
						
					} #end if

					ELSE {
						
						Write-Error "DEBUG Info - Load-PowerShellModule: Unsuccessfully loaded Module: $ModuleName.$ModuleFileExtension"
						Return $False
						
					} #end else
				
				} #end try
				
				Catch {
				
					Write-Host "DEBUG Info - Load-PowerShellModule: Error while importing the Module:"
					Write-Host "DEBUG Info - Load-PowerShellModule: $ModuleName"
                    Write-Host $Error
					Return $False
					
				} #end catch
			
			} #end if
		
			ELSE {
		
				Write-Host "DEBUG Info - Load-PowerShellModule: ModuleOverrideSourcePath and/or ModuleName seems not to exist."
				Write-Host "DEBUG Info - Load-PowerShellModule: Cannot load Module, please check your input!"
				Return $False
		
			} #end else
		
		} #end if
		
		#If $ModuleOverrideSourcePath was not given, try to find a matching folder
		ELSE {

			Write-Host ""
			Write-Host "DEBUG Info - Load-PowerShellModule: Function has been called without 'ModuleOverrideSourcePath' Parameter input!"
			Write-Host "DEBUG Info - Load-PowerShellModule: Trying to find Module Files on some Places of this Computer."

			#Set dynamic Array for locations Modul Path could be, even for some testing.
			#The first value of the array is just a dummy and will never be used -but keep it for the array value starting with 0!
			[System.Collections.ArrayList]$Paths = @()
			Write-Host ""
			$Paths.Add("$env:systemroot\") | Out-Null
			
			IF (([String]::IsNullOrEmpty($ModuleDefaultSourcePath)) -or ([String]::IsNullOrWhiteSpace($ModuleDefaultSourcePath))) {
			
				Write-Host "DEBUG Info - Load-PowerShellModule: ModuleDefaultSourcePath was not set! That could be a normal behavior in productive enviroment!" 
			
			} #end if
			
			ELSE {
				
				Write-Host "DEBUG Info - Load-PowerShellModule: Possible Path (1): $ModuleDefaultSourcePath" -ErrorAction SilentlyContinue
				$Paths.Add("$ModuleDefaultSourcePath") | Out-Null
				
			} #end else
			
			IF ([String]::IsNullOrEmpty($ScriptPath) -or ([String]::IsNullOrWhiteSpace($ScriptPath))) {
			
				Write-Host "DEBUG Info - Load-PowerShellModule: ScriptPath is invalid! That is terrifying! How could that be???"
			
			} #end if
			
			ELSE {
				
				Write-Host "DEBUG Info - Load-PowerShellModule: Possible Path (2): $ScriptPath" -ErrorAction SilentlyContinue
				$Paths.Add("$ScriptPath") | Out-Null
				
				Write-Host "DEBUG Info - Load-PowerShellModule: Possible Path (3): $($ScriptPath+"\Module")" -ErrorAction SilentlyContinue
				$Paths.Add("$($ScriptPath+"\Module")") | Out-Null
				
				Write-Host "DEBUG Info - Load-PowerShellModule: Possible Path (4): $($ScriptPath+"\Modules")" -ErrorAction SilentlyContinue
				$Paths.Add("$($ScriptPath+"\Modules")") | Out-Null
				
			} #end else		

			IF (([String]::IsNullOrEmpty((Get-Item $ScriptPath).Parent.FullName)) -or ([String]::IsNullOrWhiteSpace((Get-Item $ScriptPath).Parent.FullName))) {
			
				Write-Host "DEBUG Info - Load-PowerShellModule: ScriptPath has no Parent Folders!"
			
			} #end if
			
			ELSE {
				
				Write-Host "DEBUG Info - Load-PowerShellModule: Possible Path (5): $((Get-Item $ScriptPath).Parent.FullName)" -ErrorAction SilentlyContinue
				$Paths.Add("$((Get-Item $ScriptPath).Parent.FullName)") | Out-Null
				
				Write-Host "DEBUG Info - Load-PowerShellModule: Possible Path (6): $(((Get-Item $ScriptPath).Parent.FullName)+"\Module")" -ErrorAction SilentlyContinue
				$Paths.Add("$(((Get-Item $ScriptPath).Parent.FullName)+"\Module")") | Out-Null
				
				Write-Host "DEBUG Info - Load-PowerShellModule: Possible Path (7): $(((Get-Item $ScriptPath).Parent.FullName)+"\Modules")" -ErrorAction SilentlyContinue
				$Paths.Add("$(((Get-Item $ScriptPath).Parent.FullName)+"\Modules")") | Out-Null
				
			} #end else

			IF (([String]::IsNullOrEmpty($((Get-ItemProperty -Path "$ModuleHKLMRegistryPath" -Name ModuleSourcePath -ErrorAction SilentlyContinue).ModuleSourcePath))) -or ([String]::IsNullOrWhiteSpace($((Get-ItemProperty -Path "$ModuleHKLMRegistryPath" -Name ModuleSourcePath -ErrorAction SilentlyContinue).ModuleSourcePath)))) {
			
				Write-Host "DEBUG Info - Load-PowerShellModule: ModuleSourcePath was not set to Windows Registry (HKLM)!"
			
			} #end if
			
			ELSE {
				
				Write-Host "DEBUG Info - Load-PowerShellModule: Possible Path (8): $((Get-ItemProperty -Path "$ModuleHKLMRegistryPath" -Name ModuleSourcePath -ErrorAction SilentlyContinue).ModuleSourcePath)" -ErrorAction SilentlyContinue
				$Paths.Add("$((Get-ItemProperty -Path "$ModuleHKLMRegistryPath" -Name ModuleSourcePath -ErrorAction SilentlyContinue).ModuleSourcePath)") | Out-Null
				
			} #end else

			IF (([String]::IsNullOrEmpty($((Get-ItemProperty -Path "$ModuleHKCURegistryPath" -Name ModuleSourcePath -ErrorAction SilentlyContinue).ModuleSourcePath))) -or ([String]::IsNullOrWhiteSpace($((Get-ItemProperty -Path "$ModuleHKCURegistryPath" -Name ModuleSourcePath -ErrorAction SilentlyContinue).ModuleSourcePath)))) {
			
				Write-Host "DEBUG Info - Load-PowerShellModule: ModuleSourcePath was not set to Windows Registry (HKCU)!"
			
			} #end if
			
			ELSE {
				
				Write-Host "DEBUG Info - Load-PowerShellModule: Possible Path (8): $((Get-ItemProperty -Path "$ModuleHKCURegistryPath" -Name ModuleSourcePath -ErrorAction SilentlyContinue).ModuleSourcePath)" -ErrorAction SilentlyContinue
				$Paths.Add("$((Get-ItemProperty -Path "$ModuleHKCURegistryPath" -Name ModuleSourcePath -ErrorAction SilentlyContinue).ModuleSourcePath)") | Out-Null
				
			} #end else

	        [Int]$Counter = 0
	        [String]$ModuleSourcePath = $Null

			#Loop for multiple Pathtests - for each Path, where psm1 files could be
	        DO {
	            
				$Counter++

	            Write-Host ""
				Write-Host "DEBUG Info - Load-PowerShellModule: Testing mutiple Paths ( $Counter of"($($Paths.Count)-1)") for existence, now testing:"
				Write-Host "DEBUG Info - Load-PowerShellModule: $($Paths[$Counter])"

				IF ($($Paths[$Counter]) -gt $Null) {

					$PathTest = Test-Path $($Paths[$Counter]) -ErrorAction SilentlyContinue
					
					IF ($PathTest -eq $true) {

						Write-Host "DEBUG Info - Load-PowerShellModule: Yes, Path seems to exist."
						Write-Host "DEBUG Info - Load-PowerShellModule: Lets check, if there are any Module Files, in it."
					
						$FileTest = Get-ChildItem -Path $($Paths[$Counter]) -Filter *.$ModuleFileExtension
						
						IF ($($FileTest.count) -gt 0) {
						
							Write-Host "DEBUG Info - Load-PowerShellModule: Found $($FileTest.count) psm1 Module Files in Path!"
		    				Set-Variable -Name ModuleSourcePath -Value $($Paths[$Counter]) -Scope local
						
						} #end if

						ELSE {
						
							Write-Host "DEBUG Info - Load-PowerShellModule: Found no $ModuleFileExtension Module Files in Path!"
							
						} #end else

		            } #end if
							
					ELSE {
					
						Write-Host "DEBUG Info - Load-PowerShellModule: No, Path seems not to exist."			
					
					} #end else
		
				} #end if
				
				ELSE {
				
					Write-Host "DEBUG Info - Load-PowerShellModule: Path seems to be invalid!"
				
				} #end else
				
	        } #end do

	        UNTIL ($Counter -ge ($($Paths.Count)-1) -or ($ModuleSourcePath -eq $($Paths[$Counter])))

	        IF ($ModuleSourcePath -eq $($Paths[$Counter])) {

				Write-Host ""
				Write-Host "DEBUG Info - Load-PowerShellModule: Trying to import Module: $ModuleName.$ModuleFileExtension"

				Try {

					$Result = Import-Module $ModuleSourcePath\$ModuleName -Verbose -DisableNameChecking -Scope Global -Force:$Force -PassThru -ErrorVariable Error -ErrorAction SilentlyContinue
					
					IF ("$Result" -eq "$ModuleName") {

						Write-Host "DEBUG Info - Load-PowerShellModule: Successfully loaded Module: $ModuleName.$ModuleFileExtension"
						Return $true
						
					} #end if

					ELSE {
						
						Write-Error "DEBUG Info - Load-PowerShellModule: Unsuccessfully loaded Module: $ModuleName.$ModuleFileExtension"
						Return $False
						
					} #end else	
					
				} #end try
				
				Catch {
				
					Write-Host ""
					Write-Host "DEBUG Info - Load-PowerShellModule: Loading Module: $ModuleName went wrong."
					Write-Host "DEBUG Info - Load-PowerShellModule: Exiting Script, because of this error!"
                    Write-Host $Error
					Return $False
					exit
				
				} #end catch

	        } #end if

	        ELSE {
	        
	        	Write-Host ""
				Write-Host "DEBUG Info - Load-PowerShellModule: Cant locate Module Files automaticlly!"
				Write-Host "DEBUG Info - Load-PowerShellModule: Please select Folder in Dialog."

				#Prepare Folder Browser Dialog, to choose the Directory with the .psm1 Files.
				$FolderBrowserDialog = New-Object System.Windows.Forms.FolderBrowserDialog
				$FolderBrowserDialog.Rootfolder = "Desktop"
				$FolderBrowserDialog.Description = "Please, choose the Folder, where the Module ""$ModuleName.$ModuleFileExtension"" is stored."
	            $FolderBrowserDialog.SelectedPath = "$ScriptPath"
				$FolderBrowserDialog.ShowNewFolderButton = $true
		
				DO {
				
					#Now show the Folder Browser, if neccessary in a loop
					$FolderBrowserDialogShow = $FolderBrowserDialog.ShowDialog()

	                #By pressing the OK Button..
					If ($FolderBrowserDialogShow -eq "OK") {
							
	                    #Save selected folder path in the variable
					    $ModuleSourcePath = ($FolderBrowserDialog.SelectedPath)

						Write-Host ""
						Write-Host "DEBUG Info - Load-PowerShellModule: You choose: $ModuleSourcePath"
						Write-Host "DEBUG Info - Load-PowerShellModule: ...testing, if Module ""$ModuleName.$ModuleFileExtension"" can be found there."
						
						$PathTest = (Test-Path $ModuleSourcePath\$ModuleName.$ModuleFileExtension)
						
						IF ($PathTest -eq $True) {
						
							Write-Host "DEBUG Info - Load-PowerShellModule: Module seems to exist, in the selected Folder."
							Write-Host "DEBUG Info - Load-PowerShellModule: Now trying to load Module: $ModuleName.$ModuleFileExtension"
						
							Try {

								$Result = Import-Module $ModuleSourcePath\$ModuleName -Verbose -DisableNameChecking -Scope Global -Force:$Force -PassThru -ErrorVariable Error -ErrorAction SilentlyContinue
								
								IF ("$Result" -eq "$ModuleName") {

									$MessageBoxBody = "Module: $ModuleName.$ModuleFileExtension - successsfully loaded into current PSSession!"
									$MessageBoxTitle = "ScriptName: $ScriptName - Module/Section: Load-PowerShellModule"
									$MessageBoxButtonType = "OK"
									$MessageBoxIcon = "Information"
									$MessageBox = [Windows.Forms.MessageBox]::Show($MessageBoxBody,$MessageBoxTitle,$MessageBoxButtonType,$MessageBoxIcon) | Out-Null
									
								} #end if

								ELSE {
									
									$MessageBoxBody = "Module: $ModuleName.$ModuleFileExtension - cannot load into current PSSession!"
									$MessageBoxTitle = "ScriptName: $ScriptName - Module/Section: Load-PowerShellModule"
									$MessageBoxButtonType = "OK"
									$MessageBoxIcon = "Warning"
									$MessageBox = [Windows.Forms.MessageBox]::Show($MessageBoxBody,$MessageBoxTitle,$MessageBoxButtonType,$MessageBoxIcon) | Out-Null
									
								} #end else							
							
							} #end try
							
							Catch {
							
								Write-Host ""
								Write-Host "DEBUG Info - Load-PowerShellModule: Loading Module: $ModuleName.$ModuleFileExtension went wrong."
								Write-Host "DEBUG Info - Load-PowerShellModule: Exiting Script, because of this error!"
                                Write-Host $Error
								exit
							
							} #end catch
							
						} #end if

						ELSE {
						
							Write-Host "DEBUG Info - Load-PowerShellModule: Module seems not to exist, in the selected Folder."
							Write-Host "DEBUG Info - Load-PowerShellModule: Please, select another one! ...this Time the right!"
						
							$MessageBoxBody = "Module seems not to exist, in the selected Folder! Please, select another one!"
							$MessageBoxTitle = "ScriptName: $ScriptName - Module/Section: Load-PowerShellModule"
							$MessageBoxButtonType = "OK"
							$MessageBoxIcon = "Warning"
							$MessageBox = [Windows.Forms.MessageBox]::Show($MessageBoxBody,$MessageBoxTitle,$MessageBoxButtonType,$MessageBoxIcon) | Out-Null
						
						} #end else
							
					} #end if

	                #If you didnt pressed the OK Button..						
					Else {
					
						Write-Host ""	
						Write-Host "DEBUG Info - Load-PowerShellModule: Operation cancelled by user."			    
						Write-Host "DEBUG Info - Load-PowerShellModule: Exiting Script, because of this!"
						exit

					} #end else

				} #end do
				
				#Variable "$?" is $true when last operation was ok
				UNTIL ((($PathTest -eq $True) -and ($? -eq $true)) -or ($FolderBrowserDialogShow -eq "Cancel"))

				IF ($ModuleSourcePath -gt $Null) {
				
					Write-Host ""
					Write-Host "DEBUG Info - Load-PowerShellModule: Should ModuleSourcePath written to Windows Registry?"
					
					$MessageBoxBody = "Would you like to save the ModulePath to the Windows Registry?"
					$MessageBoxTitle = "ScriptName: $ScriptName - Module/Section: Load-PowerShellModule"
					$MessageBoxButtonType = "YesNo"
					$MessageBoxIcon = "Question"
					$MessageBox = [Windows.Forms.MessageBox]::Show($MessageBoxBody,$MessageBoxTitle,$MessageBoxButtonType,$MessageBoxIcon)
				
					IF ($MessageBox -eq 'Yes') {
					
						$PathTest = (Test-Path -Path "$ModuleHKLMRegistryPath")
						$MessageBox = $NULL

						IF ($PathTest -eq $False) {

							Write-Host "DEBUG Info - Load-PowerShellModule: Registry Key seems not to exist."
							Write-Host "DEBUG Info - Load-PowerShellModule: Trying to write ModuleSourcepath to HKLM."

						    Try {
							
								New-Item -Path "$ModuleHKLMRegistryPath" -Force -ErrorVariable Error -ErrorAction Stop | Out-Null
	        					New-ItemProperty -Path "$ModuleHKLMRegistryPath" -Name ModuleSourcePath -Value $ModuleSourcePath -ErrorVariable Error -ErrorAction Stop | Out-Null
								$env:PSModulePath = $env:PSModulePath + ";" + "$ModuleSourcePath"

						    } #end try
							
							Catch {

                                Write-Host $Error							
								$MessageBoxBody = "Could not save ModuleSourcePath to Windows Registry! Check your access rights! To bypass this issue you can write the ModuleSourcePath to User Registry (HKCU). Would you?"
								$MessageBoxTitle = "ScriptName: $ScriptName - Module/Section: Load-PowerShellModule"
								$MessageBoxButtonType = "YesNo"
								$MessageBoxIcon = "Question"
								$MessageBox = [Windows.Forms.MessageBox]::Show($MessageBoxBody,$MessageBoxTitle,$MessageBoxButtonType,$MessageBoxIcon)
							
							} #end catch
							
						} #end if
						
						ELSEIF ($PathTest -eq $True) {
						
							Write-Host "DEBUG Info - Load-PowerShellModule: Registry Key seems to exist."
							Write-Host "DEBUG Info - Load-PowerShellModule: Trying to write ModuleSourcepath to HKLM."
							
						    Try {
							
	        					Set-ItemProperty -Path "$ModuleHKLMRegistryPath" -Name ModuleSourcePath -Value $ModuleSourcePath -ErrorVariable Error -ErrorAction Stop | Out-Null

						    } #end try
							
							Catch {
							
								Write-Host $Error
                                $MessageBoxBody = "Could not save ModuleSourcePath to Windows Registry! Check your access rights! To Bypass Error: Write ModuleSource Path to User Registry (HKCU)?"
								$MessageBoxTitle = "ScriptName: $ScriptName - Module/Section: Load-PowerShellModule"
								$MessageBoxButtonType = "YesNo"
								$MessageBoxIcon = "Question"
								$MessageBox = [Windows.Forms.MessageBox]::Show($MessageBoxBody,$MessageBoxTitle,$MessageBoxButtonType,$MessageBoxIcon)
							
							} #end catch					
						
						} #end elseif
						
						ELSE {
						
							Write-Host "DEBUG Info - Load-PowerShellModule: Something went wrong, by getting the ModuleSourcePath!"
							Write-Host "DEBUG Info - Load-PowerShellModule: Exiting Script, because of this!"
							exit
						
						} #end else
						
						#Block for trying to write the ModuleSourcePath to the User Registry, if System Registry failed.
						IF ($MessageBox -eq 'Yes') {
						
							$PathTest = (Test-Path -Path "$ModuleHKCURegistryPath")
							$MessageBox = $NULL

							IF ($PathTest -eq $False) {

								Write-Host "DEBUG Info - Load-PowerShellModule: Registry Key seems not to exist."
								Write-Host "DEBUG Info - Load-PowerShellModule: Trying to write ModuleSourcepath to HKCU."

							    Try {
								
									New-Item -Path "$ModuleHKCURegistryPath" -Force -ErrorVariable Error -ErrorAction Stop | Out-Null
		        					New-ItemProperty -Path "$ModuleHKCURegistryPath" -Name ModuleSourcePath -Value $ModuleSourcePath -ErrorAction Stop | Out-Null
									$env:PSModulePath = $env:PSModulePath + ";" + "$ModuleSourcePath"

							    } #end try
								
								Catch {
								
									Write-Host $Error
                                    $MessageBoxBody = "Could not save ModuleSourcePath to Windows Registry! Not even to User Registry! Check your access rights! Exiting now.."
									$MessageBoxTitle = "ScriptName: $ScriptName - Module/Section: Load-PowerShellModule"
									$MessageBoxButtonType = "OK"
									$MessageBoxIcon = "Warning"
									$MessageBox = [Windows.Forms.MessageBox]::Show($MessageBoxBody,$MessageBoxTitle,$MessageBoxButtonType,$MessageBoxIcon)
									exit
									
								} #end catch
								
							} #end if
						
							ELSEIF ($PathTest -eq $True) {
							
								Write-Host "DEBUG Info - Load-PowerShellModule: Registry Key seems to exist."
								Write-Host "DEBUG Info - Load-PowerShellModule: Trying to write ModuleSourcepath to HKCU."
								
							    Try {
								
		        					Set-ItemProperty -Path "$ModuleHKCURegistryPath" -Name ModuleSourcePath -Value $ModuleSourcePath -ErrorVariable Error -ErrorAction Stop | Out-Null

							    } #end try
								
								Catch {
								    
                                    Write-Host $Error
									$MessageBoxBody = "Could not save ModuleSourcePath to Windows Registry! Not even to User Registry! Check your access rights! Exiting now.."
									$MessageBoxTitle = "ScriptName: $ScriptName - Module/Section: Load-PowerShellModule"
									$MessageBoxButtonType = "OK"
									$MessageBoxIcon = "Warning"
									$MessageBox = [Windows.Forms.MessageBox]::Show($MessageBoxBody,$MessageBoxTitle,$MessageBoxButtonType,$MessageBoxIcon)
									exit
								
								} #end catch					
							
							} #end elseif
						
							ELSE {
							
								Write-Host "DEBUG Info - Load-PowerShellModule: Something went wrong, by getting the ModuleSourcePath!"
								Write-Host "DEBUG Info - Load-PowerShellModule: Exiting Script, because of this!"
								exit
							
							} #end else						
						
						} #end if

					} #end if
				
					ELSE {
						
						Write-Host "DEBUG Info - Load-PowerShellModule: You choose, not to save the ModuleSourcePath to the Windows Registry!"
					
						$MessageBoxBody = "You choose, not to save the ModuleSourcePath to the Windows Registry!"
						$MessageBoxTitle = "ScriptName: $ScriptName - Module/Section: Load-PowerShellModule"
						$MessageBoxButtonType = "OK"
						$MessageBoxIcon = "Warning"
						$MessageBox = [Windows.Forms.MessageBox]::Show($MessageBoxBody,$MessageBoxTitle,$MessageBoxButtonType,$MessageBoxIcon)

					} #end else

				} #end if
				
				ELSE {
				
					Write-Host "DEBUG Info - Load-PowerShellModule: Something went wrong, by getting the ModuleSourcePath!"
					Write-Host "DEBUG Info - Load-PowerShellModule: Exiting Script, because of this!"
					exit
				
				} #end else

	        } #end else

	    } #end else
		
	} #end process
	
} #end function

#-----------------------------------------------------------------------------------------------------#
########################################### preparing part ############################################
#-----------------------------------------------------------------------------------------------------#

#Clear Console Content 
Clear-Host

#Load external Modules - use Force ( -Force) Parameter, to reload in every run
FOREACH ($Module in $Modules) {

    $Result = Load-PowerShellModule -ModuleName $Module -Force

    IF ($Result -eq $False) {
    
        Write-Host "DEBUG Info: Module: $Module was not succesful been loaded!"
		Write-Host "DEBUG Info: Please load the Module and try again, running this Function/Module!"
		Write-Host "DEBUG Info: Exiting, because of this Issue."
        Write-Host $Error
        EXIT

    } #end if

} #end foreach

#Read ConfigFile, to get all values
Set-Variable -Scope Global -Name ConfigValues         		-Value (Read-ConfigFile -ConfigFile $ConfigFile)           		-Force

#Allocate Variable Values, depending on the read ConfigFile
Set-Variable -Scope Global -Name LogPaths             		-Value (Read-ConfigFile -ConfigLabel LogPath)              		-Force
Set-Variable -Scope Global -Name LogFileKeepTime      		-Value (Read-ConfigFile -ConfigLabel LogFileKeepTime)      		-Force

#Load language File(s), if load fails -> preset Hashtable from the "set variables" section, will be used.
Write-Host "DEBUG Info: Current UICulture is: $($Host.CurrentUICulture.Name), the forced UICulture is: $UICultureForce"
Import-LocalizedData -BaseDirectory (Join-Path -Path $ScriptPath -ChildPath Localized) -BindingVariable UICultureData  -FileName UICultureData.psd1 -ErrorAction SilentlyContinue -UICulture $UICultureForce

#-----------------------------------------------------------------------------------------------------#
############################################# main part ###############################################
#-----------------------------------------------------------------------------------------------------#

Write-Logfile -LogLine " "
Write-Logfile -LogLine "********************************************************************************"
Write-Logfile -LogLine "Program Startup: $ScriptName on $env:computername,"
Write-Logfile -LogLine "from Account $env:USERDOMAIN\$env:USERNAME."
Write-Logfile -LogLine "********************************************************************************"

#If Argument Call was "interactive"
IF ($argOperationMode -like "install") {

	Write-LogFile -LogLine " "
	Write-LogFile -LogLine "Running in install mode..."
	Write-Host "DEBUG Info: Showing MSGBox, which asks if Script should be installed."

	$MessageBoxBody = $UICultureData.MessageBoxBody1_1 +"`r`n" + "`r`n"+ $UICultureData.MessageBoxBody1_2 + $windreamClientRestartTrys + " " + $UICultureData.MessageBoxBody1_3
	$MessageBoxTitle = $UICultureData.MessageBoxTitle1_1 + " " + $ScriptName + " " + $UICultureData.MessageBoxTitle1_2
	$MessageBoxButtonType = "YesNo"
	$MessageBoxIcon = "Question"
	$MessageBox = [Windows.Forms.MessageBox]::Show($MessageBoxBody,$MessageBoxTitle,$MessageBoxButtonType,$MessageBoxIcon)

	#If Argument Call was "interactive" and first Question was answerd with "Yes" or Argument Call was "background" (which is default)
	IF (($argOperationMode -like "install") -and ($MessageBox -eq 'Yes')) {

		$MessageBoxBody = "installation aborted"
		$MessageBoxTitle = $UICultureData.MessageBoxTitle1_1 + " " + $ScriptName + " " + $UICultureData.MessageBoxTitle1_2
		$MessageBoxButtonType = "YesNo"
		$MessageBoxIcon = "Question"
		$MessageBox = [Windows.Forms.MessageBox]::Show($MessageBoxBody,$MessageBoxTitle,$MessageBoxButtonType,$MessageBoxIcon)

		$objForm = New-Object System.Windows.Forms.OpenFileDialog
		$objForm.InitialDirectory = $Scriptpath
		$objForm.Filter = "All Files (*.*)|*.*"
		$objForm.Title = "Select Sourcefile, please!"
		$Show = $objForm.ShowDialog()
		If ($Show -eq "OK") {
		
			Return $objForm.FileName
		}

		Else {
		
			Write-Error "Operation cancelled by user."
		}

	} #end if

	#If Argument Call was "interactive" and first Question was answerd with "No" or just aborted it
	ELSE {

		Write-Logfile -LogLine " "
		Write-Logfile -LogLine "windream Connectivity Test was aborted by User..."

	} #end else

} #end if

#If Argument Call wasnt "install"
ELSE {

	Write-LogFile -LogLine " "
	Write-LogFile -LogLine "Running in background mode..."	

} #end else

Write-Logfile -LogLine " "
Write-Logfile -LogLine "--------------------------------------------------------------------------------"
Write-Logfile -LogLine "Checking for old LogFiles."
Write-Logfile -LogLine "--------------------------------------------------------------------------------"

Remove-Item-withLogging -Path $LogPath -FileKeepTime $LogFileKeepTime -FileBaseName $ScriptName

Write-Logfile -LogLine " "
Write-Logfile -LogLine "********************************************************************************"
Write-Logfile -LogLine "Program Completed: $ScriptName on $env:computername,"
Write-Logfile -LogLine "from Account $env:USERDOMAIN\$env:USERNAME."
Write-Logfile -LogLine "********************************************************************************"

#-----------------------------------------------------------------------------------------------------#
########################################### finishing part ############################################
#-----------------------------------------------------------------------------------------------------#

Remove-Variable -Name ScriptName                -Force -ErrorAction SilentlyContinue
Remove-Variable -Name ScriptPath			    -Force -ErrorAction SilentlyContinue
Remove-Variable -Name ConfigFile                -Force -ErrorAction SilentlyContinue
Remove-Variable -Name ConfigValues              -Force -ErrorAction SilentlyContinue
Remove-Variable -Name Timestamp1                -Force -ErrorAction SilentlyContinue
Remove-Variable -Name Timestamp2                -Force -ErrorAction SilentlyContinue
Remove-Variable -Name Timestamp3                -Force -ErrorAction SilentlyContinue
Remove-Variable -Name Timestamp4                -Force -ErrorAction SilentlyContinue
Remove-Variable -Name Counter1                  -Force -ErrorAction SilentlyContinue
Remove-Variable -Name LogFile                   -Force -ErrorAction SilentlyContinue
Remove-Variable -Name LogFileKeepTime           -Force -ErrorAction SilentlyContinue
Remove-Variable -Name LogPath                   -Force -ErrorAction SilentlyContinue
Remove-Variable -Name LogPaths                  -Force -ErrorAction SilentlyContinue
Remove-Variable -Name Module                    -Force -ErrorAction SilentlyContinue
Remove-Variable -Name Modules                   -Force -ErrorAction SilentlyContinue
Remove-Variable -Name ModuleOverrideSourcePath  -Force -ErrorAction SilentlyContinue
Remove-Variable -Name ModuleDefaultSourcePath   -Force -ErrorAction SilentlyContinue
Remove-Variable -Name ModuleHKLMRegistryPath    -Force -ErrorAction SilentlyContinue
Remove-Variable -Name ModuleHKCURegistryPath    -Force -ErrorAction SilentlyContinue
Remove-Variable -Name Item                      -Force -ErrorAction SilentlyContinue
Remove-Variable -Name Items                     -Force -ErrorAction SilentlyContinue
Remove-Variable -Name argOperationMode	        -Force -ErrorAction SilentlyContinue
Remove-Variable -Name MessageBoxBody            -Force -ErrorAction SilentlyContinue
Remove-Variable -Name MessageBoxTitle           -Force -ErrorAction SilentlyContinue
Remove-Variable -Name MessageBoxButtonType      -Force -ErrorAction SilentlyContinue
Remove-Variable -Name MessageBoxIcon            -Force -ErrorAction SilentlyContinue
Remove-Variable -Name MessageBox                -Force -ErrorAction SilentlyContinue
Remove-Variable -Name Result	                -Force -ErrorAction SilentlyContinue

Remove-Variable -Name UICultureForce	        -Force -ErrorAction SilentlyContinue
Remove-Variable -Name UICultureData		        -Force -ErrorAction SilentlyContinue 

$error.clear()