App-V PowerShell removal script

Controller.ps1

<#
    .SYNOPSIS
        Remove Visio 2010 AppV Package
    .DESCRIPTION
        Controller script to invoke 'Remove-Package' cmdlet
    .EXAMPLE
        . .\$PSScriptRoot\Remove-AppvPackage.ps1
    .LINK
        Links to further documentation
    .NOTES
        Version : 1.0
        Date Created : 28/04/2016
        Created by : Graham Beer
#> 

#Dot source the script
. $PSScriptRoot\Remove-AppvPackage.ps1

#splat the arguements to pass to 'Remove-AppvPackage' cmdlet
$RemoveVisio = @{
    
    AppVPackage = 'Microsoft_Visio_Standard_2010SP1'
    Shortcut = 'Microsoft Visio 2010.lnk'
    FlagFileName = 'Visio_2010_Removal' # .flg extension created by 'Remove-AppvPackage.ps1' script.
    
    }
#Run the code to remove Visio 2010
Remove-AppvPackage @RemoveVisio

Remove-AppvPackage.ps1

<#
.Synopsis
   Remove Appv from device
.DESCRIPTION
   This script has been created for the removal of AppV applications published to a user
.EXAMPLE
   remove-Appv -AppVPackage 'SomeApp' -shortcut "file.lnk" -FlagFileName Marker
   remove-Appv -AppVPAckage 'Microsoft_Visio_Standard_2010SP1' -Shortcut "Microsoft Visio 2010.lnk"
.INPUTS
   Add APPV package and shortcut file to remove
.OUTPUTS
   If the application removes successfully it will create a flag file in c:\windows\temp
.NOTES
   General notes
.COMPONENT
   SCCM / AppV
.Details
   Created by G Beer
   27/04/2016
#>


Function Remove-AppvPackage {

    [cmdletbinding()]
    
    param (

    [Parameter(Mandatory=$true)]
    [ValidateScript({ test-connection $ENV:COMPUTERNAME -quiet })]
    [string]$AppVPackage,
    
    [Parameter()]
    [string]$Shortcut,

    [Parameter()]
    [string]$FlagFileName

    )

Begin 
    {    
    #create log file
    try {
        $Path = 'C:\Windows\Temp'
        $FileName = (Get-Date).tostring("ddMMyyyy-hhmmss")            
        $LogFile = "AppV_Removal_" + $FileName + ".log"
        New-Item -itemType File -Path C:\Windows\Temp -Name $logfile | out-null
    
    } Catch [exception] {
    
            Write-Warning $_
    }
    
    #Set log file header
    Write-Output "[ Title ] Removal of $AppVPackage`n" | Add-Content -Path $($path + "\" + $LogFile)
    Write-Output "[ DateTime ] $(get-date)`n" | Add-Content -Path $($path + "\" + $LogFile)

}#End Begin block

process 
    {
     #Get application 
    $AppvPKG = Get-AppvClientPackage -all | ? { $_.name -eq $AppVPackage }

         if ($AppvPKG -eq $null) {
           Write-Output "[ Error ] App-V Package Not Found`n" | Add-Content -Path $($path + "\" + $LogFile) ; break
        } else {
           Write-Output "[ Success ] App-V Package $AppVPackage Found`n" | Add-Content -Path $($path + "\" + $LogFile)
        }
            
    #Add error control
    try {
        
         $AppvPKG | Publish-AppvClientPackage -Global -ErrorAction Stop | Out-Null #re-publish the application globally 
         Write-Output "[ Success ] Republished $AppVPackage to global as to overwrite previous installation settings`n"  | Add-Content -Path $($path + "\" + $LogFile)
            
    } catch [exception] {
    
        Write-Output "[ Error ] $_" | Add-Content -Path $($path + "\" + $LogFile) ; break
    }

    #Get application 
    $GlobalAppvPKG = Get-AppvClientPackage -all | ? { $_.name -eq $AppVPackage }  
    
    try {
       
            $GlobalAppvPKG | Unpublish-AppvClientPackage -Global -ErrorAction Stop | Out-Null
            Write-Output "[ Success ] globally UnPublished $AppVPackage package in readiness for removal`n" | Add-Content -Path $($path + "\" + $LogFile)
        
            $GlobalAppvPKG | Remove-AppvClientPackage -ErrorAction Stop | Out-Null
            Write-Output "[ Success ] Removed all traces of package $AppVPackage`n" | Add-Content -Path $($path + "\" + $LogFile)
             
        } catch [exception] {

            Write-Output "[ Error ] $_" | Add-Content -Path $($path + "\" + $LogFile) ; break
        }

#remove shortcut link from machine

#Excluding C:\Users\Public as it contains a different directory structure and UnPublish cmdlet removes if in Public directory

$users = ((Get-ChildItem C:\Users).Name).GetEnumerator() | ? { $_ -ne "Public" }

         #Run check against all users
   $exist = foreach ($user in $users) 
            {                                       
                Get-ChildItem "C:\Users\$user\AppData\Roaming\Microsoft\Windows\Start Menu\Programs" -Filter $shortcut -Recurse 
            }      
            
                if ( ($exist | Measure-Object).Count -eq 0 ) {
            
                    Write-Output "[ Information ] Shortcut does not exist" | Add-Content -Path $($path + "\" + $LogFile)
                        
                } else {
                    
                    try {

                        $ErrorActionPreference = "stop"
                     
                        $exist | foreach { $_.delete() ; Write-Output "[ Information ] Shortcut remove from $_ `n" | Add-Content -Path $($path + "\" + $LogFile) }
                   
                    } catch [exception] {

                        Write-Output "[ Error ] $_" | Add-Content -Path $($path + "\" + $LogFile) ; break

                    }
                }
 
}#End of Process block

End 
    {

        #Post removal check
        $Check = Get-AppvClientPackage -all | ? { $_.name -eq $AppvPKG }

        if ([boolean]$Check) {
            Write-Output "[ Error ] Failed to remove $AppVPackage" | Add-Content -Path $($path + "\" + $LogFile) ; break
    
        } else {
    
            New-Item -Path $Path -Name $($FlagFileName + ".flg") -ItemType File -Force | Out-Null
            Write-Output "[ Completed ] Successfully removed $AppVPackage" | Add-Content -Path $($path + "\" + $LogFile)
        }

   }#End of 'End' block

}#End of function