I just found this and thought I'd share. If you have an older laptop that doesn't support the two-finger scrolling gesture out of the box, this little applet may indeed work for you. If you have a Synaptics trackpad...as most laptops do...
https://github.com/awahlig/two-finger-scroll
It works a treat on my 2006-era Compaq laptop with Windows 7.
https://github.com/awahlig/two-finger-scroll
It works a treat on my 2006-era Compaq laptop with Windows 7.