COMM-DRV++ Professional Edition   
by Willies Computer Software Co (WCSC)   

COMM-DRV++ Pro is a professional C/C++ serial communication class library for Windows . It supports both Microsoft Visual C/++ and Borland C++ compilers. Xmodem, Ymodem, & Zmodem file transfer protocols are provided. All Hayes compatible modems are supported. Serial stream token/string lookup is also included. All baudrates provided by the underlying hardware is supported. Callback functions for efficient communication handling.