What is the best way to do if you use a 3rd party control in your program and register it in a client pc. The problem is, there is a big chance that other softwares are using that control, and if you are using an older version, either your program will not work or theirs. If you use such installers as WISE it will not copy files older than what the OS have. So if you didn't upgrade to the latest version of the control you are using, your program will not work. Upgrading to a newer version is not option here.

Thanks!