my answer: it's an electronic logitech mouse. CD MouseWare 9.7 (Windows XP, ME, 2000, 98, NT, 4.0, 95). I bought it end 2003. I now use a sony vaio vgn cr21s laptop. I put the mouse CD in, absolutely nothing happens. The disc just spins makes a noise nothing comes up on the screen at all. This laptop is windows vista family edition and I updated it last week to SP2 to put on my Bitdefender All Security 2015. I have no error messages. I am a novice!