Running TCIA Download Manager on Mac OS X

Apple no longer distribute Java with Mac OS X. If your system does not have Java installed, please install the Java Runtime Environment (JRE) before attempting to use TCIA's Download Manager. A common JRE, including the one TCIA is tested with, can be downloaded for free from http://www.java.com.

Starting with Mac OS X 10.8.3 (Mountain Lion), Apple removed Java Network Launching Protocol (JNLP) files, which are used to launch Java Web Start applications such as Download Manager, from the OS X safe file list. Hence, Safari, the default browser on the Mac, will no longer directly launch Download Manager, nor will Safari give a warning that it is refusing to access the JNLP file coming from TCIA with instructions for launching Download Manager with the contents of your shopping cart. Nothing will happen when you click on the Download Manager link on TCIA's shopping cart page. To work around this problem we suggest that you use an alternate browser, such as Firefox or Chrome.

Starting with Mac OS X 10.8.4 (Mountain Lion), Apple changed the default Gatekeeper setting to only run applications from the Apple store or that are signed in an Apple-specific way with a valid Apple Developer ID. This new default setting will block TCIA users from directly running the Download Manager on Mac OS X even though Download Manager is signed with a valid (but non-Apple) code signing certificate. To run the Download Manager, a Mac user may either change the Gatekeeper configuration to allow the running of 3rd party applications (the user may change it back when finished running Download Manager), or may choose to save the JNLP file for launching Download Manager in a convenient location, and then command/right/two-finger click the JNLP file and select "Open".

Users having trouble getting through the Mac OS X security mechanisms may find it simpler to use a virtual machine manager, such as Parallels, VMware Fusion, or Virtual Box to run a Linux or Windows Virtual Machine from which they can more easily launch and run the Download Manager.