Free.

Ant Commander 2.5 is free of use.

You may copy or distribute Ant Commander provided that
it's a not modified and complete version (as downloaded from http://www.antcommander.com/download.html).

THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTIES WHETHER EXPRESSED
OR IMPLIED. THE AUTHOR SHALL NOT BE LIABLE FOR ANY DAMAGE RESULTING OF THE
USE OF ANT COMMANDER.
It's prohibited to decompile the code.

Ant Commander is released with Ant and Commons-vfs which are licensed under the Apache Software License.
Other libraries and their licenses are available in the lib directory of Ant Commander.