You are right, installation seems quite difficult on windows, so it
could be a good reason to switch to another operating system.
But I have searched extensively for aswers to these problems before
posting here, and I found no helpful informations.
Anyway these problems seem quite basic to me, and it's probable other
people will soon have the same problems. If we find solutions and post
the details here, it can be of great help for people who want to begin
using ruby on a windows box.