Syncopation Software


Note that currently DPL is considered an “unidentified” app. Consequently, you’ll need to take a few extra steps to install it on your Mac. Below are the steps.

Keep in mind that your DPL app bundle and directories may vary from the instructions -- particularly if you have a DPL Academic Department site license. In Step 3, be sure to enter the name the of app bundle and directory that are specific to your machine.

Installation Instructions:

Before you can create DPL API objects you need to register the DPL Automation server, as described in section 22.2.1 of the DPL 9 User Guide. However, on newer versions of Windows registration may require administrator privileges. You may need to do the following:
  • Right-click on a command prompt and select Run as Administrator from the context menu
  • CD into the directory containing DPL9.exe
  • Give the command "DPL9.exe /Register"
  • Type exit to close the command prompt and you're ready to start using the API
Click-To-Run is a new Microsoft installation technology that is an alternative to the traditional MSI-based install. The ostensible main benefit of Click-To-Run (CTR) is that you can start using Microsoft Office before you're finished downloading it. While we enjoy cookie dough as much as the next software company, we think this is a pretty weak reason for introducing a whole new system into the already complex domain of Windows setup, but introduce it they did.

DPL 9 is compatible with previous releases of DPL. Decision Analysis Workspace/Project files (.da) from DPL 4.0, 5.0, 6.0, 7 and 8 can be loaded into DPL 89. Note that .da files are called Decision Analysis Workspace files in DPL 7 and 8, and are called Decision Analysis Project files in earlier versions.

You can import DPL Influence Diagram files (.inf) from DPL 3.x into a DPL 9 Workspace using File | Import. You can also import DPL Program files (.dpl) in the same manner.

You can use the original license code and download instruction e-mail (or CD) to install DPL again. If these are not available to you, you can send an e-mail to to request the license information.

You may transfer a DPL license from one user to another user, provided that we are made away of the details of the transfer and that the license continues to be used by only a single named-user. A named-user license may not be transferred from one user to another more than once during any period of fourteen days.

These requirements apply to all versions (Professional, Enterprise and Portfolio).

DPL 9 is compatible with Windows XP, Vista, 7, 8, 8.0 and 10.

DPL can optionally link to spreadsheets, you need to have Excel for Office 2000, XP, 2003 2007, 2010, 2013, or 2016.

A minimum of 25 MB of free disk space is required. For a complete install with all documentation, approximately 45 MB is required.

A display with resolution 1280 by 800 or higher is required. A larger, higher resolution screen gives a better modeling experience.

Previously the answer was "No" but with the DPL 9 Release the purchased version and the trial version are the same application. So if you need to re-install DPL Professional or DPL Enterprise, you can use the trial download link on the website to do so.

DPL has historically been strictly a Windows application. We don't offer a Mac-native version. We've had some users successfully run DPL on Macs with Windows virtualization.

DPL 9 is a 64-bit executable program. If you have a need for a 32-bit executable we can provide that as well. DPL 8 is a 32-bit executable program. DPL will run on a 64-bit system but will not take advantage of it (i.e., it will not use more than 4GB of memory).


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