A word about. iTalc. iTalc is freeware, so a lot may consider it, I used it well when I had an XP lab, but when we moved to Win 7 even with iTalc new Win 7 version I could never get it to work and see the other computers like when I had XP. I even had the computer science department technicians try it in their win 7 lab too and they couldn't get it to work, so we gave up. Shame as it shouldn't be that hard to get to work on Win 7 but it is.