Create a Custom Detection Script for TreeSize (PowerShell)

Microsoft Endpoint Manager Configuration Manager (MEMCM / SCCM) and Microsoft Intune use Detection Rules to determine the presence of Applications & Win32 Apps. The detection rules ensure that application installations only begin to run if the application is not already installed on the device. This article will serve as an informative guide and give you a clear understanding of how to create an updated custom detection script for each new version of TreeSize using PowerShell.

How to Create a Custom Detection Script for TreeSize

TreeSize (File Detection Method)

Install the version of TreeSize you want to deploy on a test box or VM
- Check out the following posts for further details
  - TreeSize Silent Install (How-To Guide)
  - TreeSize Install and Uninstall (PowerShell)
Open Windows PowerShell ISE by Right-Clicking on Windows PowerShell ISE and selecting Run as Administrator
Copy the following code into the Windows PowerShell ISE

## Check for TreeSize (File Detection Method)
$TreeSizeExe = (Get-ChildItem -Path "C:\Program Files\JAM Software\TreeSize Free\TreeSizeFree.exe","C:\Program Files (x86)\JAM Software\TreeSize Free\TreeSizeFree.exe" -ErrorAction SilentlyContinue)
$TreeSizeExe.FullName
$TreeSizePath = $($TreeSizeExe.FullName).Replace("C:\Program Files\","").Replace("C:\Program Files (x86)\","")
$FileVersion = (Get-Item -Path "$($TreeSizeExe.FullName)" -ErrorAction SilentlyContinue).VersionInfo.FileVersion

## Create Text File with TreeSize File Detection Method
$FilePath = "C:\Windows\Temp\TreeSize_Detection_Method.txt"
New-Item -Path "$FilePath" -Force
Set-Content -Path "$FilePath" -Value "If([String](Get-Item -Path `"`$Env:ProgramFiles\$TreeSizePath`",`"`${Env:ProgramFiles(x86)}\$TreeSizePath`" -ErrorAction SilentlyContinue).VersionInfo.FileVersion -ge `"$FileVersion`"){"
Add-Content -Path "$FilePath" -Value "Write-Host `"Installed`""
Add-Content -Path "$FilePath" -Value "Exit 0"
Add-Content -Path "$FilePath" -Value "}"
Add-Content -Path "$FilePath" -Value "else {"
Add-Content -Path "$FilePath" -Value "Exit 1"
Add-Content -Path "$FilePath" -Value "}"
Invoke-Item $FilePath

Click Run Script (F5)
A text file will open with the TreeSize Detection Method script required to detect the current version of TreeSize that is installed on the device you are running the script from.

Example:

If([String](Get-Item -Path "$Env:ProgramFiles\JAM Software\TreeSize Free\TreeSizeFree.exe","${Env:ProgramFiles(x86)}\JAM Software\TreeSize Free\TreeSizeFree.exe" -ErrorAction SilentlyContinue).VersionInfo.FileVersion -ge "4.6.1.508"){
Write-Host "Installed"
Exit 0
}
else {
Exit 1
}

Copy the TreeSize Detection Method script content into the Custom Detection Rules (Script)
Microsoft Endpoint Manager Configuration Manager (MEMCM / SCCM)
- https://docs.microsoft.com/en-us/mem/configmgr/apps/deploy-use/create-applications#bkmk_detect-script
Microsoft Intune
- https://docs.microsoft.com/en-us/mem/intune/apps/apps-win32-add

TreeSize (Registry Detection Method)

Install the version of TreeSize you want to deploy on a test box or VM
- Check out the following posts for further details
  - TreeSize Silent Install (How-To Guide)
  - TreeSize Install and Uninstall (PowerShell)
Open Windows PowerShell ISE by Right-Clicking on Windows PowerShell ISE and selecting Run as Administrator
Copy the following code into the Windows PowerShell ISE

## Check for TreeSize (Registry Detection Method)
$TreeSize = Get-ChildItem -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall","HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall" | Get-ItemProperty | Where-Object {$_.DisplayName -match 'TreeSize' } | Select-Object -Property DisplayName, DisplayVersion, PSChildName
$TreeSize.DisplayVersion
$TreeSize.PSChildName

## Create Text File with TreeSize Registry Detection Method
$FilePath = "C:\Windows\Temp\TreeSize_Detection_Method.txt"
New-Item -Path "$FilePath" -Force
Set-Content -Path "$FilePath" -Value "If([Version](Get-ItemPropertyValue -Path 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\$($TreeSize.PSChildName)','HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\$($TreeSize.PSChildName)' -Name DisplayVersion -ea SilentlyContinue) -ge '$($TreeSize.DisplayVersion)') {"
Add-Content -Path "$FilePath" -Value "Write-Host `"Installed`""
Add-Content -Path "$FilePath" -Value "Exit 0"
Add-Content -Path "$FilePath" -Value "}"
Add-Content -Path "$FilePath" -Value "else {"
Add-Content -Path "$FilePath" -Value "Exit 1"
Add-Content -Path "$FilePath" -Value "}"
Invoke-Item $FilePath

Click Run Script (F5)
A text file will open with the TreeSize Detection Method script required to detect the current version of TreeSize that is installed on the device you are running the script from.

Example:

If([Version](Get-ItemPropertyValue -Path 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\TreeSize Free_is1','HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\TreeSize Free_is1' -Name DisplayVersion -ea SilentlyContinue) -ge '4.6.1') {
Write-Host "Installed"
Exit 0
}
else {
Exit 1
}

Copy the TreeSize Detection Method script content into the Custom Detection Rules (Script)
Microsoft Endpoint Manager Configuration Manager (MEMCM / SCCM)
- https://docs.microsoft.com/en-us/mem/configmgr/apps/deploy-use/create-applications#bkmk_detect-script
Microsoft Intune
- https://docs.microsoft.com/en-us/mem/intune/apps/apps-win32-add

Always make sure to test everything in a development environment prior to implementing anything into production. The information in this article is provided “As Is” without warranty of any kind.