COMM-DRV/CE is a professional serial communication library for Windows/CE & Pocket PC. It supports ZModem, YModem, and XModem file transfer protocols as well as modem communication.
WinXfer is a versatile file transfer utility that allows transferring files between two computers directly connected through the serial port or through a modem. It is very easy to use and very intuitive.
Professional serial communication library - DLL for Windows & MSDOS libraries. Supports ZModem, YModem, XModem file transfer protocols, modems, Microsoft Visual C/C++, Borland C/C++, Access, Visual Basic, QuickBasic, & all tools that can call DLL