OneCommanderConnector.exe - 3% CPU causing fan noise

[Jorg Knobloch]

Hi all,

I've recently switched to Windows 11 and I've been running into some software conflicts.

First KeePass and Ditto seemed not to play nice, driving up CPU usage. AI told me to switch off "Tools > Options > Security > Clipboard auto-clear time" in KeePass.

While that address part of the problem, another conflict exists with OneCommander. When I edit in entry in KeePass and leave the panel open, after a short while, fan noise will go up and OneCommanderConnector.exe will show 3% CPU usage. What is it doing, even if OC and KeePass are in the background?

Can you stop this annoyance?

Jörg.

[whmxtra]

The issue isn't with onecommander, it's with keepass (really shouldn't use password managers, I've stopped counting how many of them have been hacked lol).

OC creates a connection with applicable apps. The problem is with keepass open in the background it's opening a database connection and keeping it open, and because the program has a memory leak problem it just starts using more resources. Your fondness for AI solutions only hid the issue and passes the blame to any program interacting with keepass.  So either stop using keepass or just don't leave the panel open. With the panel closed it will close the data connection and avoid the issue.

But seeing as you've had other issues with keepass you are probably better off either not using it at all or finding something a little better supported. That program and it's site look like it was done by a single dev who probably doesn't update it much or test fully.

And since you like AI answers, here's Gemini's take on things:

"KeePass can experience resource usage problems related to memory and CPU, especially with large databases, complex encryption, or certain plugins. These issues can manifest as slow loading times, high CPU usage in the background, or even crashes"

[Jorg Knobloch]

Would it be possible to get a qualified reply here?

Firstly, why does the text "The issue isn't with onecommander, it's with keepass" appear to be be quoted? Whom are you quoting, yourself?

Secondly, I need to contradict most of what you are saying:

a) "Shouldn't use password managers": How do you suggest to manage about 500 accounts and passwords then? It's possible that some online providers have been hacked, but KeePass runs locally and the encryption is safe.

b) You can save us all your stabs at software which has one maintainer. Anyone using OC around here? How many maintainers? Besides, which password manager can you offer that runs on Windows, Linux and Android?

c) Please spare us your irony related to the use of AI and subtle insults like in "fondness of AI". Maybe you can use AI to learn about polite interaction on mailing lists.

d) Finally and most importantly, it is not KeyPass that burns CPU cycles but rather OneCommanderConnector. So that can't be entirely blamed on KeePass.

Jörg.

[iiwaasnet]

When I edit in entry in KeePass and leave the panel open, after a short while

What is exactly this "panel" you leave open? I use KP, OC and Dialog Connector on Win11. I would like to try to reproduce.

I edited one random entry and left the KP opened. OC is running. I am checking CPU consumption for all of the mentioned processed. It's almost all the time at 0%.

 

Can you stop this annoyance?

This doesn't look like a nicely formulated request for a help, hence the reply you got?...

 

[Jorg Knobloch]

Thanks for trying to reproduce. The panel's title is "Edit Entry", so the general mostly used panel to capture and edit password entries.

Looks like it's not connected to an open "Edit Entry" panel after all. Right now, the OC connector is running at 3%-4% CPU when it and KeePass are in the background with only the main KeePass panel open.

As for my initial question: Yes, the fan noise is annoying from a NUC that sits right on my desktop when the machine shouldn't actually be doing anything. I apologise if someone found the use of the word offensive, which in turn doesn't justify a truly offensive and mostly non-useful (not to say useless) reply.

Jörg.

P.S.: AI tells me that OneCommanderConnector.exe is a process necessary for OC, so it can't be killed. AI also suggests to switch off any clipboard related advanced settings in OC, but I can't see any. Finally AI suggested to look at it with ProcMon and doing so, I found that both OneCommander.exe and OneCommanderConnector.exe are very active for programs that don't have focus:

That said, the activity doesn't subside when KeePass is closed, but the CPU consumption does. Strange.

[OneCommander Support]

Dev here... Recently someone else mentioned high CPU with Keypass but I after installing it I was not able to reproduce higher CPU use with default settings. 

What did you change in KeyPass settings after installing?

OneCommanderConnector doesn't use clipboard so that option that AI suggested shouldn't be an issue. Connector is looking for Open/Save dialog boxes so it can offer path suggestions from OC in those dialogs. I have no idea why it would have problem with KeyPass as it only checks when new window is opened or activated. Does it happen when some other program is active? 

OC can run without  OneCommanderConnector, just uncheck this, and then restart PC, or kill OneCommanderConnector in task manager (don't kill OC or it won't save this setting)

but please also let me know about settings you have set as I would like to find a way to reproduce the issue and find a workaround for KeyPass. 

[Jorg Knobloch]

Hi Milos,

jolly good question, why is my setup different. IIRC, on my previous NUC that was no issue, but since moving to the new NUC and Windows 11, I'm getting this undesired fan noise due to elevated CPU use. The only setting I changed consciously are:

1) "View > Configure Columns", I switched the asterisks for the password off and checked "Remember password hiding setting".

2) As mentioned, to solve a conflict with Ditto, I unchecked "Tools > Options > Security > Clipboard auto-clear time". That was causing some issue with Ditto as apparently two programs were watching the clipboard.

I've just started KeePass to look at the settings. All is quiet. However, as soon as I type anything into the search box, the OC connector springs into life and doesn't stop, even if I remove the search value. Could it mistakenly assume that the search box is something it should be watching?

Jörg.

[Jorg Knobloch]

Further to the above: I disabled the option you indicated, closed OC, OC connector disappeared as well. Started OC again, no restart of the PC. Ran KeePass gain. Result: no connector program, no CPU consumption, no noise. I'm happy to revert to the original state. for further testing. When was the OC connector introduced. I switched PC in early June 2025.

[OneCommander Support]

Thanks for details. It should only monitor it if window class name is "#32770" because that is what is common for open/save dialogs. 

Connector was added to OC in January 2022.

I can check with these steps next week. 

[Roger]

For what it is worth. The first thing I do upon installing OneCommander is to deactivate Connector feature. I struggle with high cpu-usage as well. I've never used Keypass, my password manager is Proton Pass.

[Jamil Taylor]

I do use the latest KeePass and have not experienced any issues with it.  It works fine, and it's 100% free.  

I actually did pay for pCloud Password manager, but frankly it sucks.  KeePass is much better, and it's free.

I did not have to disable connector.  I am not aware of any issues with it.  It works as expected on my machine.

As far as CPU usage, I have never seen it overly high.  My machine runs many things simultaneously though.