2 boxing questions

I have been looking over all of the tutorials and reading over a lot of Xzins posts (I play on Magtheridon as well and have been owned many times by him lol).

I plan to use 2 machines to run 2 accounts. As I was reading his FAQ/Wiki he reccomends the use of Synergy and another application he linked under it ( http://ultrashare.net/hosting/fl/97c36687b0/ ) This link no longer works. Does this link to something that is required in order to 2 box?

Here is a link to the FAQ - http://www.dual-boxing.com/forums2/viewtopic.php?t=416

I have 2 monitors to use and one keyboard/mouse. I just want to make sure I have the programs I need to do this.

Thank you in advance for the help. It is much appreciated.

Strictly speaking you can dualbox without it. Works for me anyway. Synergy, however, will be useless if you don't get it as the point of getting such a program isn't to be able to move your mouse from screen to screen but to be able to broadcast your keyboard.
I couldn't get it to work and ended up with 1 keyboard in each hand. Well, at least this way I got my movement keys enabled on the alt in tight situations.