$SoftwareDisplayName = "Application Name" # wild cards are added to both sides automatically
$Version = "1.1"  # 1.2.3.004
$CompareMethod = "Ignore"  # Ignore, Exact, SameOrHigher

function VersionCompare()
{
    param([System.Version]$version,[System.Version]$targetversion)

    if ($version -ge $targetversion)
    { return $true }
     else { return $false }
}

# 64-bit apps
$software = Get-ItemProperty -Path "hklm:\software\microsoft\windows\currentversion\uninstall\*" -ErrorAction SilentlyContinue

# 32-bit apps
$software += Get-ItemProperty -Path "hklm:\software\wow6432node\microsoft\windows\currentversion\uninstall\*" -ErrorAction SilentlyContinue


# Detect Software
$search = ("*{0}*" -f $SoftwareDisplayName)
$results = $software | Where-Object {$_.DisplayName -like $search}
if($results)
{
    # Package found, do version check based on compare method
    switch ($CompareMethod) {
        "Ignore" 
        {
            Write-Output "detected"
        }
        "Exact" 
        {
            if($results.DisplayVersion -eq $Version)
            {
                Write-Output "detected"
            }
        }
        "SameOrHigher"
        {
            if(VersionCompare -version $results.DisplayVersion -targetversion $Version)
            {
                Write-Output "detected"
            }
        }
        Default {}
    }


}