Serial Port Control Features

Native .Net, ActiveX and Delphi support.

The control comes in different forms such as ActiveX control, .Net component and Borland/Builder component. It allows use of native component in different developer environments.
Event driven architecture.

No need to check ports periodically if there is new data. Simply define a function for needed event and process the data.
No programming is required.

Just drop a control on a form in any development environment and compare this to writing thousands of lines of code.

Full list of features

General
Unlimited number of serial ports can be controlled simultaneously.
Powerful and intuitive interface to make serial port communications easy.
Delivers all the capabilities of the Win32 Serial Communications API and eliminates its complexity.
Works with all types of serial ports, including USB adaptors, Bluetooth, IR, or any virtual port.
Notifies your application when data arrives or events occur on the port, allowing you to monitor port activity and read data without locking up your user interface or implementing messy polling routines.
Performs multithreaded reads and writes with one simple function call.
Supports reading and writing of binary data.
Full buffered data transfer.
Allows setting up baud rate, parity, data bits, and stop bits parameters.
Gives full control of status line and handshaking states.
Comes with example applications (Visual Basic, Visual Basic .Net, Visual C++, Visual C#, Borland Builder, Borland Delphi).
Compatibility
Works with Windows Vista, XP, 2000, Server 2003, Server 2008, Windows 7.
Hyper-Threading Technology compatibility.
VMware compatibility.
User Interface and API
Serial ports are controlled directly from your own application.
Can be redistributed as part of your application.