User deletes Installed Application / Directory

Can anyone help me? I have browsed through earlier threads but could not find an answer to my question.
My question is "What if the user plays around with the client(deletes the installed directory or removes or moves a few or all files) that is transparently installed on his PC?"
All documents talk about changing of JARS at the server but what about user manipulating at his end(Client end).
Please help me ASAP.
Thanking you in advance.

>>
"Since JWS doesn't "install" any applications (it only caches the jar files for efficiency), this should have no real influence on the user's ability to run the app (of course, the application jar files will have to be loaded again if the JWS client can't find them). "
>>
You are right in saying that JWS does not install any applications and it only caches JAR's. But my question was WHAT IF the user deletes the JAR's. In that case what happens when the user clicks on the desktop icon(created earlier)? Will he get an error? Or will he have to realunch the application again from browser by calling the JNLP URL? or by clicking on the desktop icon, JWS seamlessly calls the JNLP, caches again and runs the applicaiton transparently to the user?
Please calrify.
Thanking you all once again in advance.

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