Need help installing new Intel LAN drivers unattended

[Marztabator]

http://www.msfn.org/board/index.php?showtopic=35397

That's the instructions seemingly for installing the drivers completely unattended.

However, the latest version available on the Intel site (PRO2KXP.exe) seems to have a different setup method now. There is no setup.exe in the root, and the main setup directory in APPS\PROSETDX\2KXPWS03 appears to use MSI now. AFAIK, MSI stuff cannot be installed during RunOnceEx (due to the MSI engine not yet being installed at that time), and I'd rather be able to get this installed somehow before the first post-install bootup (so that the "Check Internet connection" stuff happens during the OOBE and all that).

I'd like to be able to install the whole package in a similar way to how you normally install it (i.e. any extras get installed too), so I probably can't do the INF reference method in winnt.sif. Any ideas?