First post, by OMORES
I wanted an universal mouse for my all in one Ryzen 3900x which runs Windows 3.x, NT 3.51/4 and 9x/2000/XP - so I ordered a „Microsoft Cordless Wheel Mouse Serial and PS/2 compatible”.
And, indeed, it works in DOS and every Windows version, including Windows 11 - using PS/2 to serial adapter and a header connected to a X470 motherboard.
They are easy to find online new old stock for 15$...
IntelliPoint tools are working in Windows 3.11 too. I have to try it in Windows 1.0 on the serial port. (Win 1.0 comes only with serial support and usually you have to copy PS/2 driver from Win 2.0 to use a mouse)