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Virtual Serial Port Emulator
Allows to emulate serial ports

Virtual Serial Port Emulator helps to create serial ports in your system and interconnect them virtually. For different applications in Windows, your virtual ports will be seen as two actual serial ports that are connected through null-modem cable. You are free to choose the port numbers for emulated serial ports pair.

Eltima COM port emulation technology can be integrated into your own software (OEM license).

Virtual Serial Port Emulator features

  • If you use Virtual Serial Port

    Let us say, you emulate a virtual pair of serial ports COM5-COM6, where all the data that was sent by other applications to virtual serial port COM5, was received at virtual serial port COM6. It works the other way round, too.
  • For example...

    If you run two HyperTerminals (or other Windows terminal software) and connect one of them to virtual serial port COM5 and COM6, you'll see the same result due to virtual port emulator. Everything that you type in the first terminal will put in appearance in second one.
  • Serial ports look like real

    Plus to it, the option of transferring files and other data stays the same, as if it was real serial port.

    Virtual serial port emulator can be used for GPS simulator software, as well as other useful apps.

Virtual Serial Port Emulator Licenses

OEM License permits you to embed Virtual Serial Port Driver technology into your own software or hardware products. OEM license grants you the right for unlimited redistribution of Virtual Serial Port Driver as an integral part of your software. OEM license is a royalty-free one-time purchase.

OEM License

Virtual Serial Port Driver Inside Your App

Purchasing the OEM license you get:

  • OEM documentation on how to work with our driver directly
  • Example for creating a class which demonstrates the possibility to create the ports like in VSPD (visible and invisible ports)
  • vspdctl.DLL - wrapper for a driver for manipulations with virtual serial ports on a higher level
  • Supported IDEs

OEM For Developers
Sign up for the API evaluation program and integrate it into your product.

Source Code License

Ordering Source Code license for Virtual Serial Port Driver you receive all extensively commented programming source code of the driver (GUI sources are not included). In addition, we provide technical and information support by email, IMs and phone, and high-end consulting services. Our leading developers will help you implement Source codes and understand the advanced part of the product.

Site Licensing

Unlimited Site License grants you the right to install and utilize Virtual Serial Port Driver application with GUI on unlimited number of computers by all workers of your company worldwide. It is the ideal solution if your company has representation offices in the different parts of the world.

If you know the certain number of computers to be equipped with VSPD you may consider obtaining Limited Site License. The advantage of Site Licensing comparing to multiple Single licenses is one license key for all company computers.

Full features list

Create any number of virtual COM port pairs for effective serial port communication
Virtual serial ports created with Virtual Port Emulator don't differ from the real ports - applications are not able to distinguish one from another
Virtual serial port emulation technology integrated into your own software lets you manage COM ports directly from your own application via Dynamic Link Library provided with Virtual Serial Port Emulator (for OEM License holders)
Communication speed between virtual COM ports depends only on your system speed and is substantially faster than real null-modem cable connection (transfer speed is typically about 5.5 MB/sec)
No real hardware serial ports are occupied. With Serial Port Emulator your computer may even have none of them
Create ports specifically for the current user session. RDP users can create ports with identical names (for instance: COM1) for each user session
Use automatic update of ports’ list option to see the pairs created in other user sessions
Start working with instantaneously created ports even before PnP manager detects them
Strict Baudrate Emulation support
Ports opened by other applications can be deleted as well

What customers say

  • We are using VSPD for testing out Geographic Information System software connectivity with a virtual GPS (software simulation). The GPS emulator is simulating the output we normally receive from a GPS navigator.
    Bjørn Krangnes

Overall rating 4.9
based on 97 reviews

Let's get started

Virtual Serial Port Driver for Windows
Demo version limitations
• 14-day fully-functional trial
System Requirements
Windows (32-bit and 64-bit): XP/2003/2008/ Vista/7/8/10, Windows Server 2012, Windows Server 2016
Latest Update
Version 9.0.567 (6th Aug, 2017) Release notes