Windows Std Serial Comm Lib for Visual Basic 5.0

Visual Basic RS232/R485/RS422 serial port communications component library. Supports 256 ports, control multiple ports simultaneously, fully thread safe, port re-entrant, modem control,ASCII/XMODEM/YMODEM. Supports virtual serial ports (USB to serial, Bluetooth serial), hardware/software flow control, serial line status & control. Supports Visual Basic 3.0 through Visual Studio 2010. Works with Win95 thru Windows 7. 64-bit, 32-bit, 16 bit DLLs.