How to Install Remote Jar File?

Hi all
I Would know how can I implement a application that download files and then i can run them.Specifically , I would like download a jar o jar file, and then install it.
How can do it?
I`ve thought in download by httpConection:
HttpConnection c = (HttpConnection)Connector.open("http://localhost:80/cosa.txt");
InputStream is = c.openInputStream();
is.read()...
...Then I dont know what to do.I can save the stream in a file coding it in jar extension and then, try to run it in order to install it.
But I dont know do any of those things.Could I do this?
I have readed that it is easier to use of RMS, without save anything.But I ask myself how can i store the info so that i can install the jar o jad file.
Any Idea?
Thank you very much!

Emunicio,
Have a look at javax.microedition.midlet.MIDlet.platformRequest() method. Providing that you use URL pointing to a JAD file, and that your web server will send the right MIME types with JAD and JAR files, this call should trigger OTA installation.
Daniel

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