1. Using Web Start to pre-define plugins.
• You can create your own Web Start files that contain site configuration information.
• Look here to view an example JNLP file.
• You can pass in command line arguments. e.g.:

<argument>-plugin</argument>
<argument>https://docs.unidata.ucar.edu/idv/data/myplugin.jar</argument>

• You can also define bundles that are loaded at start up time:

<argument>https://docs.unidata.ucar.edu/idv/data/example.xidv</argument>

2. You can also configure the IDV to only have one running instance.
   • In the jnlp file add the -oneinstanceport argument and provide some port number.

     <argument>-oneinstanceport</argument>
     <argument>8888</argument>
     

   • Now, once the IDV is running with this argument subsequent executions of the IDV will result in the command line arguments being passed to the initial IDV and the new IDV exits.

Unidata IDV Workshop for version 6.3 > Advanced Topics > Configuring IDV Sites