[JWS] How to specify a parameter to a JWS application?

[BdS]

Hi,

I have an application which I launch giving a file name as an argument :
java myPackage.myClass fileName.xml
fileName.xml is an file containing a bunch of parameter. I have about twenty
of these files.

Now, this application is deployed with Java Web Start (jdk 1.4.2). I see in
the documentation that I can specify a parameter in the JNLP file, but I see
nothing about specifying a parameter on the client-side.
Is there a way to specify a parameter to this application on the client
side?
Should I write and maintain twenty JNLP files (one for each parameter file)?

Any help is welcome
Thanks,

BdS