Serial communication component Delphi library (DLL) for serial port (RS-232. RS-422, RS-485) communications. Features of the Windows Serial Communications Library (WSC4D) include: Uses the standard Windows API to communicate with any device connected to a serial port. Includes 34 functions plus modem control, ANSI emulation, ASCII/XMODEM/YMODEM protocols, hardware and software flow control (XON/XOFF, RTS/CTS, DTR/DSR). Includes multiple Visual Basic and .NET example programs. Can be used from GUI mode or console mode programs. State driven Xmodem and Ymodem on multiple ports simultaneously (up to 256 connections). Is port re-entrant. Is fully thread safe. Can send Windows messages on completion of events (incoming character, etc.). Supports virtual serial ports (usb to serial converter, bluetooth serial); multi-tasking, Includes 16-bit (WSC16.DLL) and 32-bit (WSC32.DLL) versions. Supports all versions of Borland Delphi including Delphi 2005/2006 and Delphi .NET. Does not depend on support libraries. Makes calls to Windows API functions only. Can also use with Visual Basic, VB.NET, Visual C++, C#, VC.NET, C++ Builder, PowerBASIC, Visual FoxPro, Visual dBase, Xbase++, and COBOL. Can be used with managed code. Can be ordered with or without source code for the DLL. Free technical support and updates for one year. Programmer's, Reference, Users and Serial Comm Manuals provided. Requires a Borland Delphi compiler. Supports Windows 95/98/Me/NT/2000/XP/2003. The evaluation version of WSC4D is fully functional and can be downloaded from site