DocServ is a small but very nice tool designed for indexing some inline documentation. Easy to use, you can install it in less than 5 minutes (downloading included !). DocServ need Apache+PHP+MySQL, but this is not an exclusive configuration you can easy adapt the software if you want to do your own stuff !
DocServ is released under the GNU GPL license version 2 or later. See http://www.gnu.org/licenses/gpl.html for more informations.
DocServ 1.0 [tgz]
If you want more informations about the software contact me at : firstname.lastname@example.org