serial port ActiveX control
Edit By BS Editor: ZylSerialPortAX is a thread based asynchronous serial port ActiveX control.
Use ZylSerialPortAX control to easily communicate with external devices on serial port connection, such as modems, bar code readers, GSM modules and others.

The demo version is fully functional. The package includes demo programs to show how ZylSerialPortAX works and a help file with the description of the component.
You can use it also with USB, infrared and Bluetooth devices, because these devices have a driver that redirects the input from the USB, infrared 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. you can free download ZylSerialPortAX 1.40 now.