$Uninstall = $false
$UKeys = 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*',
         'HKLM:\SOFTWARE\Wow6432node\Microsoft\Windows\CurrentVersion\Uninstall\*'

#If certain products need additional command line switches, add the switches here:
$ProductData = @(
    [PSCustomObject]@{DisplayName = ''; AdditionalUninstallArgument ='' }
    [PSCustomObject]@{DisplayName = ''; AdditionalUninstallArgument ='' }
)
 
foreach ($UKey in $UKeys)
{
    foreach ($Product in (Get-ItemProperty $UKey))
    {
       if ( $Product.Publisher -match "sophos")
       {
           write-host "============================================================================================"
           Write-host $Product.DisplayName  
           
           #Get any additional argument for the application as defined in ProductData        
           $additionalArgument = $ProductData.Where{$_.DisplayName -eq $Product.DisplayName}.AdditionalUninstallArgument
 
           if ($Product.UninstallString -like "msiexec*") #MSI based - case insensitive match to see if it requires msiexec to remove.
           {
              $ProductCode = $Product.PSChildName #can use the key name as it's the ProductCode.
              write-host "msiexec","/qn","/X$ProductCode","REBOOT=ReallySuppress"
              if ($Uninstall){Start-Process -Wait -NoNewWindow -FilePath "msiexec.exe" -ArgumentList "/qn","/X$ProductCode","REBOOT=ReallySuppress"  -RedirectStandardOutput "NUL"}
           }
           else #non MSI
           {
              if ($Product.QuietUninstallString) #There is a quiet uninstall string for this product, helpful!
              {
                  write-host "QuietUninstallString: " $Product.QuietUninstallString
                  if ($Uninstall){& $env:ComSpec /c $Product.QuietUninstallString}
              }
              else
              {
                  write-host "UninstallString: " $Product.UninstallString
 
                  if ($additionalArgument)
                  {
                      write-host $Product.UninstallString $additionalArgument
                      if ($Uninstall){& $env:ComSpec /c $Product.UninstallString $additionalArgument}
                  }
                  else
                  {
                      write-host $Product.UninstallString
                      if ($Uninstall){& $env:ComSpec /c $Product.UninstallString}
                  }
              }
           }
       }
    }
}