<winxp> RunOnceEx from server

hey

(I'm playing arround with winxp installation for the purpose of learning
more about winxp installation, maybe if I'm lucky go and take a
certification exam on the subject someday in the future)

I've created an unattended installation of Windows XP Pro (sp2). When the
installation finishes I then want RunOnceEx.cmd to start installation of
some standard programs I need (java, symbian, carbide.c++ etc)

I would like to have this RunOnceEx.cmd placed on a server so I easily can
modify it's contents. For example when I create this RunOnceEx.cmd file I
use this file to install J2SE: java_j2se_1411.exe, so in RunOnceEx I specify
this file for installing J2SE. The problem is that a few months later that
is an old version of J2SE, and then I want to replace that file with another
file etc...

The goal is I want RunOnceEx to install programs which are up-to-date.

My unattended installtion is from a CDR I created (slipstreamed sp2 into it)

Is it possible to install XP from a CD-ROM and have it's RunOnceEx.cmd on a
network share?
(in addtion to the RunOnceEx.cmd on the network share I also place the setup
files for J2SE etc there too)

any suggestion?