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When trying to lonch web start application at client machine, it is downloading the .jnlp file rather executing

Posted on 2014-09-02
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Last Modified: 2014-10-14
Sir,
I have developed a web start java application. When I am trying to lonch at customer machine it is downloading the jnlp file rather executing.  When I looked into Control Panel\Programs\Default Programs\Set Associations the .jnlp extension file entry not exists.
Secondly, in other machines it is showing

Your security setting have blocked a self signed application from running

Please help.

Regards
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Question by:MILIND_JOG
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Expert Comment

by:CEHJ
ID: 40298136
 When I looked into Control Panel\Programs\Default Programs\Set Associations the .jnlp extension file entry not exists.

Is javaws.exe even present on that box?

Your security setting have blocked a self signed application from running
Self-signed no longer cuts it i'm afraid. Whoever signed it will have to resign it with a proper cert
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Author Comment

by:MILIND_JOG
ID: 40300547
Sir,
Thanks  for reply.

My PC doesn't have javaws.exe.

Regards
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Expert Comment

by:CEHJ
ID: 40300585
Then that's your problem. You can't associate a file extension with a program that doesn't exist on your system. Install Java

You should get the people who wrote the app to investigate auto download of the runtime in addition to signing it with a proper cert
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Author Comment

by:MILIND_JOG
ID: 40300770
Sir,
I am using NetBeans to develop application. Previously While building the project, I setup the property of project/web start/signing/customize/self-sign by generated key. As per your suggestion what I understood, I changed the property to Sign By a Specified key. After rebuilding , I put every thing on the root of web tomcat. The application is available to run on server itself, but unable to open the page on client machines. There it is still showing the message "Your Security settings have blocked a self-signed application from running".

Secondly, I understand your comment about javaws.exe. Please suggest me how to get that. I do understand that I do not have the basic idea about that. Please help.

Regards
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Accepted Solution

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CEHJ earned 2000 total points
ID: 40300804
As per your suggestion what I understood, I changed the property to Sign By a Specified key.
So did you purchase a proper signing certifcate? If not, you need to do that in order to be able to use it.

Secondly, I understand your comment about javaws.exe. Please suggest me how to get that.
javaws normally comes with the Java runtime. It's probably not installed on the machine you're trying. You need to install it
https://java.com/download
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Author Closing Comment

by:MILIND_JOG
ID: 40379227
Thanks a lot. My query is resolved under your guidance.

Regards
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Expert Comment

by:CEHJ
ID: 40379306
:)
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