"Thanks you for you interest in our product.
Unfortunately we have not had the resources to test the PistolMouse FPS under the operating systems you are asking about. My understanding is that OS/2 added native USB mouse support in Warp 4 FP13. To get it to work in earlier versions you would need to manually install drivers as you know. We just don't know what specific drivers you would need. Obviously you would need a USB driver specific to the motherboard you are using, but beyond that I just don't know.
One other alternative is to use a USB to PS/2 adapter with our mouse in which case it should work with any operating system that has mouse support.
We do back our product with a complete 30 day satisfaction guarantee, so if you are willing to buy the product and test it out, if you can't get it to work to your satisfaction you can return it for a refund.
Obviously, we are interested in the results you could provide if you test this out.
A reply to my asking of their pistol mouse would work with OS/2-eCS-other operating systems. It would be neat to try it with eCS (I have USB mouse support installed on my pc - it was in the list in the hardware manager).
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OS/2 Warp-ed/eComStation-ed to the very end.
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