Thanks, that's what I was looking for, but now when I got it working, I need something more

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I thought it was easy to autostart java app in LAN, but I can't figure out how to do this.
I have my app in jar file and I want to run it on several computers in my Windows network ( autostart ), what should I do ?
I tried writing .bat file with
javaw -jar \\192.168.0.4\myApp.jar myParameters , but when I run it all I can hear is BEEP .. so I don't think it's a good idea.
Do I have to use Java Web Start or is there some other way ?
Kuba