ZylSerialPort.NET is a thread based, event driven, asynchronous / synchronous serial port .NET class / component. Use ZylSerialPort.NET component to easily communicate with external devices on serial port connection, such as modems, bar code readers, GSM modules and others.

You can use it also with USB, IrDA and Bluetooth devices, because these devices have a driver that redirects the input from the USB, IrDA or Bluetooth port to a virtual serial port (you can check it in System/Device Manager/Ports). If your USB device is not provided with such a driver, then use a USB controller whose vendor provides a virtual serial port driver, such as FTDI or use a USB/RS-232 adapter.

ZylSerialPort.NET is written 100% in C# using .Net framework and API calls.
It solves the problems the standard .NET SerialPort implementation has, like unplugged USB devices, automatic reconnect, etc.

The demo version is fully functional, but it displays a nag dialog (the licensed version will, of course, not have a nag dialog). The package includes demo programs for C# and VB.NET for Visual Studio 2010, 2012, 2013, 2015 and 2017, Winforms and WPF. A help file is also included or you can use the online documentation.

Supported Operating Systems:
Windows 98/Me/2000/XP/Server2003/Vista/Server2008/7/8/Server2012/10
Available for: .NET Framework 2.0 (demos: VS 2010), .NET Framework 3.5 (demos: VS 2010), .NET Framework 4.0 (demos: VS 2012), .NET Framework 4.5 (demos: VS 2013), .NET Framework 4.6 (demos: VS 2015), .NET Framework 4.7 (demos: VS 2017), .NET Standard 2.0 (demos: VS 2017) (contact us, if you need another combination)
Requierments: .NET Framework
Installation:
Add a reference to the dll from your project and declare an object of the component type in your application.
If you want to install it on the toolbox, click here.

Help file:
If you can't open the help file:
-right-click on the documentation.chm file to get the properties
-on the bottom it says: “This file came form another computer....”
-push “Unblock” next to this text
-now the help.chm files opens as all other help files

What's new :
- support for Delphi/C++Builder 10.3 Rio
- fault detection optimization, when CloseWhenLineStatusIsZero is true
- new property: PacketSize
- new auto reconnect feature
- improved fault detection
- new method: ReadChars
- new methods: DetectDevice
- support for Delphi/C++Builder 10.2 Tokyo
- new event OnFault
- new property IsFaulted
- new method ReadStringLine
- new method ReadStringUpToEndChars
- support for Delphi/C++Builder 10.1 Berlin
- synchronous communication support
- support for Delphi/C++Builder 10 Seattle
- support for Delphi/C++Builder XE8
- C++Builder Windows 64-bit support
- Windows 64-bit support
- New property XonChar
- New property XoffChar
- New property XonLim
- New property XoffLim
- New property ParityCheck
- New property ReplaceParityErrors
- New property DiscardNulls
- New property DsrSensitivity
- New property TXContinueOnXoff
- New property ErrorChar
- New property EofChar
- New method ReplaceControlChars
- New handshake DTR/DSR
- RTS handshake removed; you can use EnableRTSOnOpen instead
- new Send methods
- log to file
- fixes
- support for custom port names
- more standard baud rates supported

Only for V.I.P