Try a different mouse driver - Cutemouse (http://cutemouse.sourceforge.net/) is a free DOS based mouse driver with very little memory footprint.
I was going to say that you need to check that your COM1 (serial) port is enabled in either your BIOS or on your IDE controller, but since you tried it in different PC's, I don't think this is the problem.
Lastly, you could have a faulty mouse - open the mouse and see if the wiring inside isn't loose. It could also be a problem at the connector (that connects to the port).

80486DX2 wrote:

Then I attached a PS/2 > serial port adapter to this mouse, but it doesn't work in the serial port.

Which kind of adapter? Remember that using a simple passive adapter requires the mouse to support both PS/2 and serial protocols, and thus not all PS/2 mice work on serial port with an adapter.

Jesolo, Jepael, thank you very much for the answer!

I got the serial mouse from a friend, who used that about 15 years ago and back then it was OK, but now we weren't able to check it for 100% sure. I give a try for that mouse driver.

I searched a photo on the net about that adapter:
http://www.pccables.com/images/PS2-F_Mouse_TO … -Mini_Din_6.jpg
It's very simple.

Hmm... I don't know whether my PS/2 mouse supports serial protocols.

I think, I try to buy a tested serial mouse.

Thank you again!

have your pc more than one serial port?

com1 and com2 , are the bios settings to standard adress and irq for comport?

maybe mouse driver searches on the false comport.

at least the mouse can be defektive or the cable is broken.

has the mouse a switch on the bottom side?
mine has a switch so change betwween MS=microsoft mode an PC=pc systems mode

Hello Sammy!

It has 2 serial ports.

Next week I'll be at the place, where I store my old PCs. So I'll look into the BIOS.

The mouse is very simple. no buttons on the side. 😀

Thank you for your suggestions!

Yeh serial mouse is pretty basic stuff.
I'd try any other PC with a serial port. Even XP (and I'm betting later) still supports them.
I would ditch the converter though. If you have a PS2 port use a PS2 mouse, so much nicer options plus 1 less thing to go wrong.
Most of us are trying to find ways to use a PS2 mouse on a system that only has serial, not the other way round!!!

Why is this in PC Emulation?

chinny22 wrote:

Yeh serial mouse is pretty basic stuff. I'd try any other PC with a serial port. Even XP (and I'm betting later) still supports […]
Show full quote

Yeh serial mouse is pretty basic stuff.
I'd try any other PC with a serial port. Even XP (and I'm betting later) still supports them.
I would ditch the converter though. If you have a PS2 port use a PS2 mouse, so much nicer options plus 1 less thing to go wrong.
Most of us are trying to find ways to use a PS2 mouse on a system that only has serial, not the other way round!!!

Sorry, maybe my English wasn't clear enough: I used my 486PC with the PS2 mouse just to test the driver itself.

Moved to Marvin subforum.

Looks pretty simple, you use a PS/2 Mouse on a Passive Adapter ?
Your Mouse doesnt support Serial Protocol.

You need a Active Converter, not a Passive one.
Or get a real Serialmouse.

I think he has a serial mouse and a ps2 mouse with an adapter.

you are right, only use the adapter the mouse was selled with.

if there was no adapter with the mouse then chances a very little that it work.

Are you trying Microsoft's mouse driver for one of their proprietary (IntelliPoint) serial mouses instead of the proper driver for your non-Microsoft serial mouse? Based on the error message I'd say so...

Another possibility is that the mouse is finicky about your COM ports speed settings.

yawetaG wrote:

Another possibility is that the mouse is finicky about your COM ports speed settings.

That can't be an issue, as the mouse driver will set the COM port speed by itself.

Most likely it just is PS/2 only mouse so it does not work with a passive adapter. Unless it has been tested to work on another PC's serial port.

The RS232 Port can be tested easily (partialy), if needed.
Just Plug a Wire in Pin 2 to Pin 3
Open a Terminal Programm and Enter some Text, you should see a echo.

I'm sorry for the late reply! Thank you very much for all the helpful comments!

The problem was with the mouse itself. Not so long ago I bought another serial mouse (the seller said it was tested and worked fine) and it works fine with my machine, too.

******
(I'm also sorry for placing this topic in a wrong section. Thank you for removing it!)