If it's Logitech, try using the Windows-provided Logitech mouse driver.
The Microsoft mouse driver may also work, but without the middle mouse button.

Not sure why would you use "Mouse System mouse" driver?! Use Logitech or Microsoft.

mvm916 wrote on 2023-01-17, 21:15:

I'm trying to get a new-old-stock PS/2 ball mouse (specifically a HP branded Logitech mouse) to work with my DOS 6.22/WfW comput […]
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I'm trying to get a new-old-stock PS/2 ball mouse (specifically a HP branded Logitech mouse) to work with my DOS 6.22/WfW computer (a DX4-100MHz system) via a serial-to-PS/2 adapter.

I am currently running a Microsoft basic serial ball mouse, but due to its age, it's quite flakey and doesn't always register keypresses.

I'm using CTMOUSE drivers and it identifies and loads the drivers to work in DOS, but Windows does not work with the Cute Mouse drivers. Setting Windows settings to "Mouse Systems Mouse" causes it to hang and/or blue screen.

How can I get the mouse to work on the DOS 6.22/WfW computer? Anybody have experience with this?

I apologize if this is a duplicate post.

you could always solder new mouse button switches to it if you can find replacements. are they proprietary or just the common Omron/Kailh rectangular shaped mouse button switches.

Or open the mouse and use "contact cleaner" to clean those stubborn switches...

Honestly, I hadn't associated the mouse with a Logitech re-brand until I wrote this post...I only used it as a way to describe the mouse without having a picture (I'm posting at work after my shift). It looks pretty identical to a Logitech mouse, so trying a Logitech driver seems, well, logical!

Otherwise, I will try the hardware methods noted. I have broken down the old Microsoft Mouse, gave it a good cleaning and sprayed contact cleaner in the switches.