Create a Custom Detection Script for FastStone Image Viewer (PowerShell)

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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 FastStone Image Viewer using PowerShell.

How to Create a Custom Detection Script for FastStone Image Viewer

FastStone Image Viewer (File Detection Method)

## Check for FastStone Image Viewer (File Detection Method)
$FSViewerExe = (Get-ChildItem -Path "C:\Program Files\FastStone Image Viewer\FSViewer.exe","C:\Program Files (x86)\FastStone Image Viewer\FSViewer.exe" -ErrorAction SilentlyContinue)
$FSViewerExe.FullName
$FSViewerPath = $($FSViewerExe.FullName).Replace("C:\Program Files\","").Replace("C:\Program Files (x86)\","")
$FileVersion = (Get-Item -Path "$($FSViewerExe.FullName)" -ErrorAction SilentlyContinue).VersionInfo.FileVersion

## Create Text File with FastStone Image Viewer File Detection Method
$FilePath = "C:\Windows\Temp\FastStone_Image_Viewer_Detection_Method.txt"
New-Item -Path "$FilePath" -Force
Set-Content -Path "$FilePath" -Value "If([String](Get-Item -Path `"`$Env:ProgramFiles\$FSViewerPath`",`"`${Env:ProgramFiles(x86)}\$FSViewerPath`" -ErrorAction SilentlyContinue).VersionInfo.FileVersion -ge `"$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 FastStone Image Viewer Detection Method script required to detect the current version of FastStone Image Viewer that is installed on the device you are running the script from.

Example: 

If([String](Get-Item -Path "$Env:ProgramFiles\FastStone Image Viewer\FSViewer.exe","${Env:ProgramFiles(x86)}\FastStone Image Viewer\FSViewer.exe" -ErrorAction SilentlyContinue).VersionInfo.FileVersion -ge "7.7.0.0"){
Write-Host "Installed"
Exit 0
}
else {
Exit 1
}

FastStone Image Viewer (Registry Detection Method)

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

## Create Text File with FastStone Image Viewer Registry Detection Method
$FilePath = "C:\Windows\Temp\FastStone_Image_Viewer_Detection_Method.txt"
New-Item -Path "$FilePath" -Force
Set-Content -Path "$FilePath" -Value "If([Version](Get-ItemPropertyValue -Path 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\$($FSViewer.PSChildName)','HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\$($FSViewer.PSChildName)' -Name DisplayVersion -ea SilentlyContinue) -ge '$($FSViewer.DisplayVersion)') {"
Add-Content -Path "$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 FastStone Image Viewer Detection Method script required to detect the current version of FastStone Image Viewer that is installed on the device you are running the script from.

Example: 

If([Version](Get-ItemPropertyValue -Path 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\FastStone Image Viewer','HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\FastStone Image Viewer' -Name DisplayVersion -ea SilentlyContinue) -ge '7.7') {
Write-Host "Installed"
Exit 0
}
else {
Exit 1
}

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.