Before all, I must say I�m from a non speaking country (Argentina). Forgive my sintactical errors. My situation is this, nowadays I because as a project leader at work, and i�ll have in charge 3 new programmers. The problem I have, is that I have no way for checking versions of classes after modified. I�ll need someone to recommend me some kind of program (open source or so) preferently free, for download from the internet. I must say that we are actually working with JBuilder4, i�ll install JBuilder 8 by this week. Suggestions are all listened carfully. Thanks Leonardo Lopez.