COMM-DRV/Dos

"Serial communication device driver for MS-DOS that allows access to serial ports as if they were files."
By SoftCns Editor: COMM-DRV/Dos is a robust and reliable serial communication product for MS-DOS, Embedded DOS, and Extended DOS. Any tool, utility, or computer language that has the ability to open, read, write, and close files can perform serial communication with this tool. Applications written with tools like Watcom DOS4GW 32 bit extender, Phar Lap extenders, Magic, QBasic, QuickBasic, VBDOS, Foxpro, Advanced Revelation, C/C++, Pascal, Fortran, Cobol can use it for all its serial communication services.

COMM-DRV/Dos is a fully tested product with thousands of hours of continuous bug free operation. It is currently used as the serial I/O backbone for several transaction processing, SCADA, billing, banking, terminal emulation, bulletin board, fax, satellite, factory floor, submarine, space, multi-user, and several other applications. It was designed to be extremely easy to use. It may be used in applications ranging from the very simple to the very complex. It will not interfere with other serial drivers, DLLs, or TSRs that follow standard Windows and MS-DOS conventions.

COMM-DRV/Dos allows the sharing of individual IRQs on the PC. Several serial ports can be connected to the same IRQ. IRQ00 through IRQ15 are supported. Any port address can be assigned to any COM device. Any COM device can be renamed. Each port supports adjustable communication buffers of up to 128k bytes. DTR/RTS/DSR/CTS hardware protocol is supported on both reception and transmission as well as XON/XOFF software protocol.

COMM-DRV/Dos operate at speeds in excess of 460.2K baud on cards that allow it. It supports most non-intelligent multiport serial cards that have the 8250, 16450, 16550, 16650, or compatible serial chip as well as many intelligent multiport cards. It supports both ISA and PCI cards.

COMM-DRV/Dos may be used with any MSDOS multitasker. It can be integrated with our COMM-DRV/VxD product to work with Windows 3.x, Windows 95, and Windows 98. It can be integrated with our COMM-DRV/NT product to work with Windows NT and Windows 2000.

COMM-DRV/Dos is a group of serial communication utilities that work together to provide a complete MSDOS solution to serial communications. It includes:
• A high performance TSR (commtsr.exe) that allows any application that can issue INT14 calls and DAM calls the ability to perform serial communication. All the utilities shipped with COMM-DRV/Dos use this TSR.
• A device driver (commdrv.drv) that allows any application or program the ability to write to the serial port if it can open, read, & write to a standard file. This include programs like Magic,
• A file transfer utility (cdrvxf.exe) that supports the ZModem, XModem, and YModem protocols.
• A simple BBS type utility (xfer.exe) for sending and receiving files between computers.
• A keyboard utility (cdrvkeyb.exe) that stuffs data inputted from the serial port to the keyboard buffer.
• A simple multi-terminal utility (cdrvmtrm.exe) that allows viewing/sending simple ASCII data over several serial ports concurrently.
• A serial port monitor/ANSI terminal program (commdrv.exe) that can be used to display serial port statistics as well as view data received.