D+ is a 64 bit application. You can download the D+ installer of version 4.1.0.0 (the version of this paper) or the latest version 5.1.4.1 (the version of this paper).

If you have an earlier version of D+ you will need to uninstall it before installing the new version.  

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The latest version of D+ includes a new model, epdb, which calculates the electron diffraction of pdb files.

Before installing the program you will need to agree to the License of D+. 

Our Tutorials will help you to get started.

For more inforamtion see our User's Manual and papers. 

You may also learn from our Usage Examples. 

Use the Suggest Parameters accessory tool.

The PDBUnits accessory tool can be useful if you have a large atomic model (given as a PDB file) with repeating smaller subunits. 

DebyeCalculator is a tool of D+ for computing the scattering intensity of atomic models, given as PDB files, using Debye formula.

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In addition, D+ has a Python API for more advanced usage of D+.

If you have a problem please try our Troubleshooting.

If you find bugs, or if you have comments/ideas, please report using our bug report form or contact us. 

The source code of D+ is available for academic users and developers. (Or here for the version 4.1.0.0)