Tactical Software COM ports are not displayed in the Windows Device Manager for several reasons:When a COM port is added or removed, it goes through Plug-and-Play enumeration, which can take 10-30 seconds for each port. It could take several hours to enumerate thousands of ports. Even mid-sized installations would have to wait 30 minutes or more for Plug and Play COM ports to install.Windows chooses the COM port numbers on enumeration, so users would lose the ability to specify the COM port numbers. This would prevent use of the Serial/IP API and silent-install technologies built into the product.Avoiding the Windows Device Manager prevents situations for the installer to get stuck or conflict with other drivers. Many of our customers use our product specifically because it avoids the numerous problems with the Windows Device Manager that they have had with other products.Please note: Even though the Tactical Software COM ports are not present in the Windows Device Manager, any application that uses COM ports will be able to see and use them just like hardware COM ports.