Then add the protocol handler "cismdx" (which will call the script "cismdx_opendx_webcall") by right clicking on the gray "Preference Name" bar and selecting "New->String".
Enter "network.protocol-handler.app.cismdx" in the dialog box and select "OK". When you are prompted to enter a string value, enter "/usr/local/CISM_DX/cismdx_opendx_webcall". When complete, you should see a line as shown in the black box below.
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