VSPE is intended to help software engineers and developers to create/debug/test applications that use serial ports. It is able to create various virtual devices to transmit/receive data. Unlike regular serial ports, virtual devices have special capabilities: for example, the same device can be opened more than once by different applications, that can be useful in many cases. With VSPE you are able to share physical serial port data for several applications, expose serial port to local network (via TCP protocol), create virtual serial port device pairs and so on.

ZylSerialPort.NET is a thread based, event driven, asynchronous serial port .NET component (class library). 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.

GoDiagram makes it easy to build applications where users can see and manipulate graphs of nodes connected by links. From simple diagrams to interactive workflows and complex system monitors, GoDiagram helps you quickly create rich displays for your diagramming needs. GoDiagram contains several built-in node types and full sample applications to get your project started quickly. GoDiagram is built from the ground up in C# and is designed to be extensible for your custom needs.

Delphi and C++ Builder component for access to Windows I/O and memory-mapped ports.

Access to I/O and memory-mapped ports on 32 and 64-bit Windows
Easy of use, fully autoconfigurable
Available for Delphi/C++ Builder 5 - 10 and Lazarus 1.4.2
Block data transfer enables high speed data transfer
DirectAccess mode provides the fastest access to I/O ports (32-bit Windows only)
Source code of component included in full version
Royalty free distribution of component and device driver with applications

Delphi and C++ Builder component for access to Windows I/O and memory-mapped ports.

Access to I/O and memory-mapped ports on 32 and 64-bit Windows
Easy of use, fully autoconfigurable
Available for Delphi/C++ Builder 5 - XE8 and Lazarus 1.2.6
Block data transfer enables high speed data transfer
DirectAccess mode provides the fastest access to I/O ports (32-bit Windows only)
Source code of component included in full version
Royalty free distribution of component and device driver with applications

Asynchronous serial communications made easy for your Delphi & C++Builder applications. TMS Async is a communications package containing components which provide access to the serial ports under Windows. The event-driven architecture provides the highest possible performance and allows all the tools to run in the background.

Virtual Serial Port Driver creates virtual serial ports and connects them in pairs via virtual null modem cable. Applications on both ends of the pair will be able to exchange data in such a way, that everything written to the first port will appear in the second one and backwards.

Asynchronous serial communications made easy for your Delphi & C++Builder applications. TMS Async is a communications package containing components which provide access to the serial ports under Windows. The event-driven architecture provides the highest possible performance and allows all the tools to run in the background.