Transparent build workflow for com0com

Benjamin Fuchs — Sat, 25 Apr 2026 07:07:49 -0000

Hi,

is com0com still maintained?

I’d like to help create a transparent GitHub-based build/release workflow with CI, documented artifacts, and checksums, so users don’t have to just trust random executables.

Would you be open to this or a maintained fork?

Best regards
Benjamin

here is Window 11 driver

Behzad Sedighzadeh — Fri, 06 Feb 2026 12:40:41 -0000

Did not work for me. Win 11 Build 22621.

Baud Rate in COMPORT error

Ghislain — Tue, 27 Jan 2026 08:34:27 -0000

I have observed baudrate properly applies to the COM port provided after, as in:

D:\Downloads\hub4com>hub4com --route=all:all --baud=115200 //./COM16 //./C1 //./C2

Seeing your ouptut, maybe the baudrate flag may have to be repeated just before every port specified, as in:

D:\Downloads\hub4com>hub4com --route=all:all --baud=115200 //./COM16 --baud=115200 //./C1 --baud=115200 //./C2

Here is the window 11 driver

CHONG YOE YAT — Mon, 18 Aug 2025 02:03:06 -0000

please find the window 11 driver in attachment.

here is Window 11 driver

CHONG YOE YAT — Mon, 18 Aug 2025 01:58:58 -0000

Please find the window 11 driver at attachment.

Split physical port with two windows apps

Artur Garrido — Thu, 19 Jun 2025 23:14:56 -0000

So the thing is, I have two devices connected via USB to my windows 11 computer. The two devices use COM10 port because in device manager I only got one "USB serial device" available and is set to COM10.
So, the devices are a Turing Smart Screen and an UPS from Salicru. Each one of the devices have a specific software to manage them.
Because the devices are detected with the same COM port, I can only use one software at a time.
So, the thing I need to know is if with hub4com and com0com it's possible to split or share the same port with the two devices and the two softwares. I can't change the com port used in any of the softwares, at least to my knoledge.
Thank you in advance to anyone who is willing to help.

Can't get com0com working on Windows 10 (Win 10, Win10)

Lee King Yeung — Sat, 17 May 2025 08:48:43 -0000

Windows Update solved the issue for me on both Windows 10 and 11.

Under Windows Update > Advanced options > Toggle on "Receive updates for other Microsoft Products". After toggling on, check for Windows update again.

Com0Com Physical comports

Cliff Prosser — Thu, 15 May 2025 05:48:00 -0000

I am running windows 10 64 bit. Is Com0com used only for software defined radios?

If not,

I am wanting to have a virtual port directed back to a physical comport. My example will be ito have USB serial port3 to connect with virtual port 10.

Can you provide the steps?

Thanks

com0com Installation Issue (Code 52) with Secure Boot Enabled on Windows 10

Mike Drake — Wed, 09 Apr 2025 22:25:03 -0000

Hi,

This error is typical when the driver is not signed and Windows does not allow its installation.
Make sure to use the signed driver, which you can find on SourceForge. Have a look at the screeshot.

To check whether the driver you're using is signed, right-click the .sys file, go to Properties, and under the Digital Signatures tab, check that there is an entry under Embedded Signatures.

In some versions of Windows, the Digital Signatures tab doesn't appear at all — which means the driver is not signed.

If I may give you a suggestion try using SerialTool (www.serialtool.com). It's up to date, supports creating Virtual COM Ports, and includes many other features. If you work with serial ports, it's currently the most complete and well-designed software out there.

virtual port not listed in Win11

Mike Drake — Thu, 20 Feb 2025 01:34:05 -0000

This is a good point... anybody suceeded with it?

Recent posts to Discussion

Transparent build workflow for com0com

here is Window 11 driver

Baud Rate in COMPORT error

Here is the window 11 driver

here is Window 11 driver

Split physical port with two windows apps

Can't get com0com working on Windows 10 (Win 10, Win10)

Com0Com Physical comports

com0com Installation Issue (Code 52) with Secure Boot Enabled on Windows 10

virtual port not listed in Win11