Dacapo 1.04.0001 was available as a free download on our software library. This free software was originally produced by FEV Motorentechnik GmbH. The following versions: 1.4 and 1.0 were the most frequently downloaded ones by the program users. The default filenames for the program's installer are dacapo.exe, Dacapo_V1-04-02_081014.exe or IconA8F005052.exe etc. Dacapo lies within Education Tools, more precisely Science Tools.
From the developer:
Dacapo is a total energy program based on density functional theory. It uses a plane wave basis for the valence electronic states and describes the core-electron interactions with Vanderbilt ultrasoft pseudo-potentials.
For an overview see the Pseudopotential_Library page. Calculations using dacapo are done using the Atomic Simulation Environment (ASE).
You may want to check out more software, such as CAEFEM, Quarter Mile Math Level 1 or Photometric Toolbox32, which might be similar to Dacapo.