Features: Small footprint (only 120K). Full control of all aspects of the serial port communication. Sends / receives characters. Workable with any serial port between COM1 and COM255. Supports RS232 and RS485 serial ports. Retrieves the information for the installed modems, makes a call and waits for a call. Easy download/upload directory setup. Easy upload-file name(s) setup. Easy download-file name setup for all XModem protocols. ZModem with crash recovery. Run-time royalty free.