Virtual Null-Modem Emulator software

Virtual Serial Port Driver is a commercial serial port emulator developed by Electronic Team. It is a professional-grade utility that creates pairs of virtual COM ports that can be connected with a virtual null modem. The virtual port pairs provide a communication bridge enabling data transmitted from an app at one end of the pair to be received immediately at the other end. This null modem emulator is a feature-rich solution to the problems caused by the lack of physical serial interfaces on modern computers.

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In addition to allowing a virtual null modem connection, our RS232 emulator can also assign custom names to serial ports. It does not have limits on virtual port creation as well, with the only limit being your system resources. As a virtual serial port emulator, VSPD transfers data between connected ports almost instantly, and with none of the factors that could affect a physical cable. An SDK is available as well, allowing the port emulation features to be added to commercial projects.

Features Offered by Virtual Serial Port Driver

Find out what makes this serial port emulator practical, convenient, and fast. VSPD has numerous advantages both over similar software and over physical null-modem connections.

Multiple virtual ports

This virtual serial port emulator has no limits on the amount of created ports, outside of your hardware. Virtual ports can be accessed from the Control Panel, with separate access rights for each port.

Flexible options

Split and join serial ports, form bundles, and create automatic switchers. Configure the COM port emulator to fit any possible use.

Efficient communication

Achieve a fast and error-free connection that’s only possible with a null modem emulator. No cables or adapters are required.

Virtual Serial Port Driver vs. Null-modem emulator

VSPD and the com0com Windows virtual COM port emulator have differences outside of licensing. Many of these are related to working on modern systems, co-existing with connected physical devices, creating presets, and various other features that can be important in the workplace.
Product to compare:
Features list
Virtual Serial Port Driver Electronic Team
Null-modem emulator com0com
Tested version
11.0.1047
3.0.0
MAIN FEATURES
Can be integrated into a product without forcing you to publish your own code
Works out of the box, no software or drivers required
Customer support
Technical assistance for SDK use and integration into your product
Regular software updates and improvements
Drivers have passed Microsoft Windows Hardware Quality Labs (WHQL) tests and are digitally signed by Microsoft
Unlimited virtual serial port pairs
Full software emulation of a real serial port
Hot virtual port installation - no reboot required after creation or configuration
Faster than a real null-modem cable, only limited by CPU speed
Port renaming, names not limited to “COM_”
Virtual serial ports located in Device Manager, available to any software
Ports with non-standard names show up under “Ports” in Device Manager
Port creation for individual user sessions. Ports with the same name allowed in different RDP sessions
Ports are automatically re-created on system reboot (prior to user login)
Information about the current virtual serial port state, amount of sent/received data
Virtual serial port can have the same name as a real serial port (virtual serial port overlapping)
Emulate virtual serial line connection break
Manage the port access list to restrict access to created ports for various applications
Different virtual null-modem schemes
Ability to save a null-modem scheme as a template
Full support of Flow control (Hardware and Xon/Xoff)
All signal lines supported (DTR/DSR/CTS/RTS/DCD/RI)
Strict baud rate emulation
Make virtual ports available to printers by modifying Windows Registry
Drivers and binaries are signed by a company certificate
No warnings during port creation on Windows XP
Works on Windows 10 with UEFI and Secure Boot enabled
Virtual pair settings can be changed without the need to close ports
Virtual pairs can be deleted without the need to close ports
Remove all virtual pairs in one click
New ports can be interacted with immediately, even before detection by the PnP manager
The virtual port properties window in the device manager has a tab with port information and statistics
ADDITIONAL FEATURES
All Windows operating systems supported
Windows XP 32/64
Windows 7 32
Windows 7 64
Windows 10 32
Windows 10 64
Windows Server 2008 R2
Windows Server 2012 R2
Windows Server 2016
Free version available
no (trial)
No Net Framework is required for the GUI to run
You can enable automatic port list updating to see pairs created in other user sessions
Possibility to change the company in the device name shown in Device Manager
Splitting one COM port (physical or virtual) into several virtual ones
Merging an unlimited number of physical or virtual serial ports into one virtual COM port
Creating complex port bundles
Ability to forward serial traffic from one real port to another real or virtual port
Possibility to set read and write rights for every port
Saving data on usage of ports by applications in ‘Activity log’
Sharing one real COM port among multiple applications at a time
Ability to merge several serial ports into a single bundle

What problem can be solved with a Virtual Null Modem?

Some programs can only communicate between themselves over a serial connection. If you have two such programs on the same computer, then you can connect them with a COM port emulator. By creating virtual ports for the applications to use, they can be connected directly on the system, without the need for physical cables. This is called null-modem emulation, and we’ll compare two virtual serial ports emulators that have this functionality.
small logo Virtual Serial Port Driver
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Virtual Serial Port Driver
Virtual Null Modem Emulator for Windows
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Information
Requirements: Windows 7/8/8.1/10/11 (32/64-bit), Windows Server 2012/2016/2019/2022, Windows on ARM, 6.55MB free space
Latest version Standard: v11.0.1047, Released 4 Apr, 2023 Release notes
Category: Serial Port Software
Demo limitations: 14-day fully-functional trial
Pricing: Starts from $139.95
Languages: English
The registered users of the previous version can upgrade with a 50% discount. Learn more
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