Saves all user preferences in a custom file called a Preference Set.
These preferences can be loaded up later using Preferences > User Preferences > Load Preference Set.
Preference Set files are kept in:
C:\Users\<username>\AppData\Roaming\Autodesk\Alias\UserPrefs2013\Preference Sets (Windows Vista and Windows 7)
C:\Documents and Settings\<username>\Application Data\Autodesk\Alias\UserPrefs2013\Preference Sets (Windows XP)
/Users/<username>/Library/Preferences/Autodesk/Alias/UserPrefs2013/Preference Sets (Mac).
They have file extension .aps (Alias Preference Set) and contain the following components: