ApplicationFactoryService

1.5.2

Templates/Application/Detection.ps1

                                # Define minimum required version

$DisplayName = "<Enter DisplayName value from registry>"

$Version = "###VERSION###"

# Process each key in 64-bit Uninstall registry path and detect if application is installed, or if a newer version exists that should be superseeded

$UninstallKeyPath = "HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall"

$UninstallKeys = Get-ChildItem -Path $UninstallKeyPath

foreach ($UninstallKey in $UninstallKeys) {

    $CurrentUninstallKey = Get-ItemProperty -Path $UninstallKey.PSPath -ErrorAction "SilentlyContinue"

    if ($CurrentUninstallKey.DisplayName -like $DisplayName) {

        # An installed version of the application was detected, ensure the version info is equal to or greater than with what's specified as the minimum required version

        if ([System.Version]$CurrentUninstallKey.DisplayVersion -ge [System.Version]$Version) {

            return 0

        }

    }

}