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Virtual Serial Port Driver
vs Null-modem emulator (com0com)

Here we provide a comparison of major features of Virtual Serial Port Driver and Null-Modem Emulator (com0com) to help make your decision easier. In the table below, you’ll see the benefits of the paid vs free, open-source software.
Features list
Virtual Serial Port Driver
Electronic Team
Null-modem emulator
com0com
Tested version 10.0.858 3
MAIN FEATURES
The proprietary licensing scheme that does not oblige you to expose the complete source code of your own derivative works which are based on or incorporate any part of the program checked checked
The out-of-the-box solution that does not require any additional software or drivers checked checked
Availability of customer support service assisting in matters related to software usage, installation, and configuration checked checked
High-level technical assistance during software customization and integration into your industry-specific products checked checked
Regular software updates and improvements checked checked
Drivers successfully passed Microsoft Windows Hardware Quality Labs (WHQL) tests and are digitally signed by Microsoft checked checked
Any number of virtual serial ports pairs can be created checked checked
Full software emulation of real serial port checked checked
Hot virtual ports installation - no reboot required after installation, creation or reconfiguration of virtual serial ports checked checked
Link between virtual serial ports is much faster than real null-modem cable connection and solely depends on your processor speed checked checked
Virtual serial port may have any name you like (not only COMx) checked checked
Virtual serial ports are located in Device Manager, thus any software finds the ports checked checked
Virtual ports are located in "Ports" group of Device Manager checked (all ports) checked (only COMx ports)
Possibility to create ports for the current user session only. Allows RDP users to create port with the same name (e.g. COM1) in each user session. checked checked
Ports are automatically re-created on system reboot (prior to user login) checked checked
Get information about current virtual serial port state, amount of sent/received data checked checked
Virtual serial port can have the same name as real serial port (virtual serial port overlapping) checked checked
Emulate virtual serial line connection break checked checked
Manage port access list, which is used to restrict access to created ports for various applications checked checked
Different virtual null-modem schemes are available checked checked
Ability to save null-modem scheme as a template checked checked
Full support of Flow control (Hardware and Xon/Xoff) checked checked
All signal lines supported (DTR/DSR/CTS/RTS/DCD/RI) checked checked
Strict baudrate emulation checked checked
Make virtual ports available for printers, registering virtual serial ports in Windows Registry so, that they can be selected in Add Printer Wizard checked checked
Drivers and binaries are signed by company certificate checked checked
Works on Windows 10 with UEFI and Secure Boot enabled checked checked
Virtual pair settings can be changed without the need of closing ports checked checked
Virtual pair can be deleted without the need of closing ports checked checked
Remove all virtual pairs in one click checked checked
Instantaneous ports creation lets working with them even before PnP manager detects the newly added ports checked checked
Virtual port properties window in device manager has a tab with port information and statistics checked checked
ADDITIONAL FEATURES
All Windows operating
systems supported
Windows 7 32 checked checked
Windows 7 64 checked checked
Windows 10 32 checked checked
Windows 10 64 checked checked
Windows Server 2012 R2 checked checked
Windows Server 2016 checked checked
Free version available checked no (trial) checked
No Net Framework required for GUI to run checked checked
Requesting Administrator privileges: start / GUI operation No Yes
You can enable automatic update of ports’ list, thus you can see pairs created in other user sessions checked checked
Possibility to change company in device name shown in Device Manager checked checked