Application List

This script will generate a list of installed applications minus those in the exclusion list text file. I created this script so the help desk could have a concise list of applications that need to be installed post-build. The script excludes all apps that are in the exclusion list, which includes everything in our build. I wrote the script so that it can be executed from SCCM on a per system basis. It could be modified to allow it to execute on remote machines.

The first thing to do is to create the ExclusionList.txt file and place it in the same directory as the script. Next is create a package in SCCM. That is all that is to it.

You can download the script from here.

 <#  
 .SYNOPSIS  
   Installed Applications  
 .DESCRIPTION  
   This will retrieve the list of installed applications from   
   add/remove programs  
 .Author  
   Mick Pletcher  
 .Date  
   09 April 2015  
 .EXAMPLE  
   powershell.exe -executionpolicy bypass -file InstalledApplications.ps1  
 #>  
   
 #Declare Global Variables  
 Set-Variable -Name Architecture -Scope Global -Force  
 Set-Variable -Name Applications -Scope Global -Force  
 Set-Variable -Name LogFile -Value "c:\Applications.csv" -Scope Global -Force  
 Set-Variable -Name RelativePath -Scope Global -Force  
   
 function Get-RelativePath {  
      $Global:RelativePath = (split-path $SCRIPT:MyInvocation.MyCommand.Path -parent)+"\"  
 }  
   
 function Get-Architecture {  
      $Global:Architecture = Get-WmiObject -Class Win32_OperatingSystem | Select-Object OSArchitecture  
      $Global:Architecture = $Global:Architecture.OSArchitecture  
      #Returns 32-bit or 64-bit  
 }  
   
 function CreateLogFile {  
      #Define Local Variables  
      Set-Variable -Name Output -Scope Local -Force  
      Set-Variable -Name Temp -Scope Local -Force  
        
      if ((Test-Path $Global:LogFile) -eq $true) {  
           Remove-Item -Path $Global:LogFile -Force  
      }  
      if ((Test-Path $Global:LogFile) -eq $false) {  
           $Temp = New-Item -Path $Global:LogFile -ItemType file -Force  
      }  
      $Output = "Application Name"  
      Out-File -FilePath $Global:LogFile -InputObject $Output -Append -Force -Encoding UTF8  
                       
        
      #Cleanup Local Variables  
      Remove-Variable -Name Output -Scope Local -Force  
      Remove-Variable -Name Temp -Scope Local -Force  
 }  
   
 function GetAddRemovePrograms {  
      #Define Local Variables  
      Set-Variable -Name Applicationsx86 -Scope Local -Force  
      Set-Variable -Name Applicationsx64 -Scope Local -Force  
      Set-Variable -Name ARPx86 -Scope Local -Force  
      Set-Variable -Name ARPx64 -Scope Local -Force  
        
      $ARPx86 = "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\"  
      $ARPx64 = "HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\"  
      if ($Global:Architecture -eq "32-bit") {  
           $Applicationsx86 = Get-ChildItem -Path $ARPx86 | ForEach-Object -Process {$_.GetValue("DisplayName")}  
      } else {  
           $Applicationsx86 = Get-ChildItem -Path $ARPx64 | ForEach-Object -Process {$_.GetValue("DisplayName")}  
           $Applicationsx64 = Get-ChildItem -Path $ARPx86 | ForEach-Object -Process {$_.GetValue("DisplayName")}  
      }  
      $Global:Applications = $Applicationsx86 + $Applicationsx64  
      $Global:Applications = $Global:Applications | Sort-Object  
      $Global:Applications = $Global:Applications | select -Unique  
        
      #Cleanup Local Memory  
      Remove-Variable -Name Applicationsx86 -Force  
      Remove-Variable -Name Applicationsx64 -Force  
      Remove-Variable -Name ARPx86 -Force  
      Remove-Variable -Name ARPx64 -Force  
 }  
   
 function GenerateReport {  
      #Define Local Variables  
      Set-Variable -Name Application -Scope Local -Force  
      Set-Variable -Name Exclusions -Scope Local -Force  
      Set-Variable -Name LogFile -Scope Local -Force  
      Set-Variable -Name Print -Value $true -Scope Local -Force  
        
      $Exclusions = Get-Content -Path $RelativePath"ExclusionList.txt"  
      foreach ($Application in $Global:Applications) {  
           if ($Application -ne $null) {  
                $Application = $Application.Trim()  
           }  
           if (($Application -ne "") -and ($Application -ne $null)) {  
                foreach ($Exclusion in $Exclusions) {  
                     $Exclusion = $Exclusion.Trim()  
                     if ($Application -like $Exclusion) {  
                          $Print = $false  
                     }  
                }  
                if ($Print -eq $true) {  
                     Write-Host $Application  
                     Out-File -FilePath $Global:LogFile -InputObject $Application -Append -Force -Encoding UTF8  
                }  
           }  
           $Print = $true  
      }  
   
      #Cleanup Local Variables  
      Remove-Variable -Name Application -Scope Local -Force  
      Remove-Variable -Name Exclusions -Scope Local -Force  
      Remove-Variable -Name LogFile -Scope Local -Force  
      Remove-Variable -Name Print -Scope Local -Force  
 }  
   
 cls  
 Get-RelativePath  
 Get-Architecture  
 CreateLogFile  
 GetAddRemovePrograms  
 GenerateReport  
   
 #Cleanup Global Variables  
 Remove-Variable -Name Architecture -Force  
 Remove-Variable -Name Applications -Force  
 Remove-Variable -Name LogFile -Force  
 Remove-Variable -Name RelativePath -Force