Virtual COM Port Driver creates a virtual serial port and connects it in pairs through a virtual modem cable. Both applications will be able to exchange data in this way, and all data written to the first port will be displayed on the second port over and over again.

All virtual serial ports work and behave exactly like real ones, simulating all their settings. You can create as many virtual port pairs as needed, so there will be no serial port short circuits or additional hardware occupying your desktop.

In addition, Eltima virtual serial port technology can be fully integrated into your own software (for DLL, ActiveX, or Core level use).

Virtual Serial Port Driver PRO Function

1. Official user manual:https://www.eltima.com/wiki/user-guides/vspd-pro/

Virtual Serial Port Driver PRO is an efficient integrated software based on the "Virtual Serial Port Driver" function. This program helps create virtual serial port bundles and set custom port parameters, making this solution very suitable for various usage scenarios.

Virtual Serial Port Driver PRO provides you with the most convenient and simple way to manage both physical and virtual COM ports.

Serial port segmentation



Virtual Serial Port Driver PRO allows physical serial ports (such as COM 1) to be divided into multiple virtual communication ports (COM2, COM3, COM4, etc.) that appear in the system, serving as an exact copy of the hardware serial interface. In addition, the software also provides hardware serial port sharing between multiple applications. Several serial port applications will be able to access the same COM port and devices inserted into it.

Combining COM ports

The software solution will help you connect multiple virtual COM ports to a real physical port. Connecting to this true COM port, the serial application will simultaneously receive data from all connected virtual COM ports. Simply put, with this advanced feature, you can redirect data from multiple devices to one application.

Create a bundled connection

The unique option provided by the PRO version of the software allows you to create and manage complex serial ports. This means that serial data can be transmitted in and out through an infinite number of physical and virtual COM interfaces. By receiving through the COM port on the 'IN' end, serial data will be redirected to each COM port on the bound 'OUT' end, and vice versa.

The above is the process of setting the main port for each end (In/Out) of the bundle to facilitate the management of hardware control lines.

Automatically switch ports

If your application is designed to use a limited number of ports, you can use Switcher (a special feature of Virtual Serial Port Driver PRO). With this option, you can connect multiple physical ports to a virtual port (you can choose to name all ports the same), and then create a switch to this virtual COM port in the desired application.

Whenever your program requires a serial port connection, the switch will detect the unused COM ports in the connection port list and provide them to the application. In this way, your program will automatically communicate with any idle serial port as if it were always the same port.

Merge COM ports

The new advanced feature of Virtual Serial Port Driver PRO allows you to add any number of physical and virtual COM ports to a single serial port bundle that is not divided into "IN" and "OUT" ends. All content sent to a port will be copied to all other physical and virtual ports in the bundle. Due to this feature, each device/application can exchange data with multiple devices/applications simultaneously.

Main functions of Virtual Serial Port Driver

Official user manual:https://www.eltima.com/wiki/user-guides/vspd.html

Virtual COM Port Driver is the perfect solution for creating an infinite number of virtual COM ports, with complete and realistic simulation of serial port parameters and behavior.

Create any number of virtual COM ports

The Virtual Serial Port Driver allows you to create an unlimited number of virtual serial ports. The created ports are located in the "ports" group in the Device Manager, which means they will be visible and easily recognizable to all software and hardware installed. No actual hardware serial port is occupied.

Fully realistic simulation of port settings

The virtual port created by the Virtual Serial Port Driver is identical to the actual port. They simulate all real serial port settings and provide strict baud rate simulation and complete HandFlow control support. In addition, you can easily simulate serial line breaks (only authorized for standard versions and above). In addition, VSPD adopts advanced Windows kernel driver technology to ensure support for WDM, WMI, power management, PnP, and more. The Virtual Serial Port Driver is fully compatible with API COM and supports all Windows messages.

Manage all signal lines

Virtual serial port simulation created using Virtual COM Port Driver, supporting all standard hardware signal lines (DTR/DSR, RTS/CTS, RING, ERROR, DCD, etc.). In a real modem connection, the DTR of the local port is connected to the DSR and DCD of the remote port, and the RTS of the local port is connected to the CTS of the remote port. In addition, you can choose the loopback pin arrangement or create a custom one based on your hardware configuration (limited to standard version and above licenses only).