Among the many advantages of using virtualization techniques are improved resource utilization, flexible operating system implementation, and streamlined disaster recovery. Using a single physical server, an organization can run multiple virtual guest OS sessions concurrently. The sessions share the physical resources such as storage space, CPU, and peripherals attached to the local host. The ability to forward serial ports to a VMware Workstation instance adds functionality to the virtual session and increases the value of your peripheral devices.
The problem is that many virtualization environments do not provide for the use of COM interfaces. If you want to use serial devices and ports in a virtual machine, you need to use one of the solutions discussed below.