Signum JTAG under virtualbox

I'm using Gentoo Linux as the host and Windows (other OSes) as the guest system on my laptop. Some time ago I had to debug ARM device with Signum JTAG but after I installed drivers Windows 7 Device Manager says "This device cannot start. (Code 10)" and no one know how to fix it. I reisntalled it few times, checked old and new drivers but the same. I checked Google but no answer. But I found the solution a little bit later.

Latex and track current version of a document

I wrote a lot of stuff on latex. But any stuff when I have to send it to someone who will revise it every time became pain in the butt, bcoz someone cannot distinguish one version from another. So I made a solution...