BlueBrick is a free software for Windows/Vista/Win7 (32 and 64bit), developed by Alban Nanty in open source. You can use it for your personal use but not for commercial profit. You can redistribute it under the terms of the GNU General Public License version 3 as published by the Free Software Foundation. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY.
This software was designed specially for the AFOLs who want to prepare the layouts of their LEGO® exhibitions. BlueBrick is compatible with LDRAW and "Train Depot Track Designer", and was designed with an easily expandable parts database. Its layers feature allows you to better organize your map, and some special layers make annotations and area assignments possible.