Free trial copy To try UCINET for free for 60 days, go to "Download Instructions" below. You do not need a registration code for the trial period. Upgrades If you have already bought UCINET 5 or 6 for Windows, you are entitled to a free upgrade of UCINET 6 at any time. If your copy is older than 21 Dec 2006 (version 6.143), you should uninstall your old version before installing the new version. N