Uninstall previous versions of some applications (like done for Java) Merged

Nice! You just added this as a pre-update script? Do you know why the vendor may not auto-remove the older version by default? I just don't want to break anything if the older versions are left there for a reason.

I used the Java script to make a quick and dirty version for GPL Ghostscript

#Set variables#
$AppToUninstall = "GPL Ghostscript*"
$PublisherToUninstall = "Artifex Software Inc.*"

process{
 set-TSxDefaultLogPath -defaultLogLocation:$false -LogLocation $ENV:TEMP
 $Software = Get-InstSoftware | Where-Object {($_.DisplayName -like $AppToUninstall) -and ($_.Publisher -like $PublisherToUninstall)}
 Write-TSxLog -Message "Starting log for $AppToUninstall removal for Patch My PC"
 If ($Software -eq $null) {
 Write-TSxLog -Message "Exit 0"
 Exit 0}
 Else{ 
 foreach($Install in $Software)
 {
 Write-TSxLog -Message "Now removing $($Install.DisplayName) using command $($Install.UninstallString)"
 try {
 $Results = Start-Process $Install.UninstallString -ArgumentList /S -Wait -NoNewWindow -ErrorAction Stop -PassThru
 Write-TSxLog -Message "The application was uninstalled with Exit Code: $($Results.ExitCode)"
 }
 catch {
 Write-TSxLog -Message "An error occured trying to remove a version of the software it terminated with the error $($_.Exception.Message)" -LogLevel 3
 Write-TSxLog -Message "The Exit code was $($Results.ExitCode)"
 }
 Write-TSxLog -Message "The application has been succesfully removed"
 }
 }
}

We will look into this to see what we could do.