associating a custom file extension with java app in windows

Question

I would like to "link" few file extensions to my java application under windows. When user double clicks file with "linked" extension, I would like to open my app and I need to know path to file that launched app.

Answer 1

If you deploy the app. using Java Web Start, an interest in file-types can be declared in the launch file. See the demo. of the file services, which..

..prompts the user to associate file extension .zzz (simply a file type unlikely to clash with existing file associations) of content type text/sleepytime. ..

When the user double clicks a .zzz file, it should open in the app. Actually, the word 'prompts' there is not the whole story. If you launch the sand-boxed version you will be prompted as to associating the file-type. The trusted version does not prompt.

To add more user-control to the process, look to the IntegrationService that was introduced in 1.6.0_18 (I don't have a demo. of that one yet). You might run it at start-up, after checking with the user.