Dual Station Computer

So i know this is possible on windows what i am trying to do is set up my computer with multiple screens keyboards and mice to use with differant people at onece (example freind on one screen and me on other as if they were seperate computers) my school has a computer set up as a dual station but i have not been able to find a windows solution other than running vmware which i would like to avoid now if any one could give me some insight to this it would be very appreciated

if at all confused this is basicly what i want to do http://www2.userful.com/products/downloads/free-2-user