How do I install the DPL 9 Mac-compatible version?

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:

  1. Copy the link into your web browser.
  2. Choose to Save File. The .zip file will be saved to your Downloads.
  3. Open your Downloads in Finder. You should see listed.
  4. Double-click on the file to expand it.
  5. You should now have a DPL9Mac folder. If you expand it you'll see it contains two items: and a folder of DPL example files.

Figure 1: Downloads directory with DPL 9 App Bundle unzipped and expanded

Now you'll need to update some security settings before attempting to open this "unidentified" app.To tell Gatekeeper to allow apps from unidentified developers:

For reference see:

  1. Open System Prefs | Security & Privacy | General. Under "Allow apps downloaded from:" you need to select the "Anywhere" option.

    Note: you'll likely need to open a terminal and provide a command to enable the "Anywhere" option.

  2. If you don't see this option close the System Preferences window and open a Terminal.
  3. Enter the command "sudo spctl --master-disable" without quotes. You will be prompted to enter your password -- supply it and press Return. (See Figure 3 below)
  4. Open System Prefs | Security & Privacy | General again. Select the "Anywhere" option now available under "Allow apps downloaded from:" if it isn't already.

Figure 2: Security & Privacy settings with apps allowed from "Anywhere"

Lastly, you'll need to un-quarantine the DPL app with Apple:

For reference see:

  1. Open a terminal.
  2. You'll need to change your working directory to the to the directory that contains the file. The command you'll use is "cd" for change directory. For example, if the file located within the Downloads folder type "cd Downloads/DPL9Mac" into the Terminal and press Return. You should see "[~/Downloads/DPL9Mac] at the beginning of the next line if successful.
  3. Now enter "xattr -d -r" without quotes and press Return. You might get a couple of lines that say "xattr: No such file..." which is ok.

Figure 3: Terminal with commands for enabling "Anywhere" security setting and quarantine DPL app

Now you're ready to open the file and start building models! Return to your Downloads folder (if that's where the app is located) and double-click on the Upon the first loading of DPL you should see a dialog flash for Wineskin. Then you will receive a dialog in which you can choose to accept our EULA. If you're activating an individual or trial license you will need to enter the serial number and installation key provided to activate your DPL license. Some DPL Academic site licenses come with a license file embedded in the app bundle so activation isn't necessary.

I tried /Register but I still can't create objects with the DPL API

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

Does DPL work with a "Click-To-Run" version of Excel for Office 2013?

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.

If you have a choice, we recommend you install Microsoft Office using the regular MSI-based approach, as many things don't work with CTR. However, DPL will run with a CTR'ed Excel, but you will need to take some steps in order to see the DPL Excel Side Interface. For step by step instructions see this FAQ.

Please note that we're looking at this issue and may modify our setup script so that CTR installations are automatically recognized in the future.

Is DPL 9 compatible with older releases of DPL?

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 "back save" a DPL 9 Workspace file to either a DPL 4.0, 5.0, 6.0, 7, or 8 Project/Workspace file using File | Save As. Some information for new features in DPL 9 may be lost.

I want to transfer my license to a colleague. How do I go about doing so?

You may transfer a DPL license from one user to another user, provided that we are made aware 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 fourteen day period.

To initiate a transfer, please send an e-mail to to enlighten us to the details of the license transfer. We will update our records accordingly. The individual no longer using DPL should uninstall the software. The new user can use the original license codes and download e-mail (or CD) to install the software. If these are not available, you can request the link/codes by sending an e-mail to

What are the System Requirements for DPL 9?

These requirements apply to all versions (Professional, Enterprise, Fault Tree, 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. For the best experience we recommend Excel for Office 2007 or later. The Excel installation must be the full, installed version, not a web-based version opened from a browser. DPL is compatible with both 32-bit and 64-bit installations of Excel.

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.

Can I run DPL on my Mac?

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.

With the DPL 9 Release we've developed a Wine-based Mac-compatible version of DPL. The Mac-compatible version supports linking to Excel for Mac (Versions 15 & 16). If you're interested in the Mac-compatible version of DPL, please contact

You can find detailed installation instruction for the Mac-compatible version of DPL here:


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