JNLP With Device Communication on ObexFTP

Hi Guys,
I just want to know below process is possible in webstart.

i have created a swing application to download data from a device using Obex FTP and its working fine.
i have obexftp (.exe,dll files) in a resource directory and bu running Process.exec() it will download files from a device.

Now i want to move it to web start. i have a jar bundled with this obexftp folder inside.
Is it possible to download data like above process in webstart.
Please help me.

Regards,
Sundar

I have a stand-alone java application (swing based).
I want the pop-up to come up from the customer (where the application is running) machine, if any new updates (in terms of new jars/modified jars) to alert and ask the customer to apply the fix/patch, whatever you call.
For this scenario, jnlp/webstart will be useful or think about any other java mechanism?