TMS Scripter: Setup should Install the product even if there is anotehr version installed

The TMS installer detects that yhere is another product and asks if it can be removed before uninstalling, if you click no the setup closes, but if you clikc yes, and, maybe prevuious installed folder has been deleted, the setups says the setup cannot continue ans exits. There should be an option to override this behaviour and overwrite previous installation if that cannot be uninstalled.