Allegro 4.2 Beta
Allegro is software which allows programs to interact with your PC. Certain programs, mainly games software, will require a version of allegro.
If you need the Allegro DLL, it's here and we've placed this in an installation program for you:
Download Allegro 4.2 DLL (beta 3) »
For more information on allegro, and how to use it in programs you create, visit the Allegro website. Allegro is free and open source.