JDK-6649371 : JNLP Association (per-user) does not work in Vista
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more investigation show that per-user level association does not require HKLM keys - HKCU is sufficient.
Java Web Start does have enough permission to update HKCU keys in Vista.
Fix in 6u14
system level association is more complex though (HKLM) - will open new bug for that.
to register association , we need to write to HKLM registry branch, which java web start won't have permission to do so on Vista.
Problem exists in older JRE as well, e.g I tested on 6.0
com.sun.deploy.association.RegisterFailedException: Key SOFTWARE\Classes\MIME\Da
tabase\Content Type\application/x-dmt creation error!
at com.sun.javaws.LocalInstallHandler.registerAssociation(Unknown Source
at com.sun.javaws.LocalInstallHandler.createAssociations(Unknown Source)
at com.sun.javaws.LocalInstallHandler.performIntegration(Unknown Source)
at com.sun.javaws.LocalInstallHandler.install(Unknown Source)
at com.sun.javaws.Launcher.notifyLocalInstallHandler(Unknown Source)
at com.sun.javaws.Launcher.prepareLaunchFile(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.launch(Unknown Source)
at com.sun.javaws.Main.launchApp(Unknown Source)
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
we probably need to use jbroker to create the keys