MKS Software
Eltima Serial Port ActiveX Control 3.0
Eltima Serial Port AX Control is a powerful ActiveX component that can be used to simplify communication with external devices on rs232 connection. This includes modems, bar code readers, PBX or any other devices that have a serial interface.
Programming > ActiveX COMVirtual Serial Ports Driver XP2 2.0
Virtual Serial Ports Driver (VSPD) is a Windows device driver. Using it you can create any number of virtual serial COM ports in your system which will be virtually connected to each other via virtual null-modem cable
PC Utils > Printing