v4.0

http://tech.groups.yahoo.com/group/power-pro/message/24260

Aliases may exist as labels within the ARB script and/or as external
scripts matching a user-specified wildcard. For those not interested in
backward compatibility with internal aliases an 'external' edition
without that facility is included.

Major differences to v3.2:

* Aliases can be stored externally.
* New internal aliases are automatically recognised.
* The ARB box defaults to its last used command string.
* Programmatic alias manipulation (ARB_Add etc.) is not included.