Some questions about XP-SP2 unattended installation

[ravisunny2]

I have some questions about XP-SP2 (and SP3) unattended installation

1. My Win XP-SP2 gets activated automatically when I connect to internet after the installation.

Should I use

[unattended]

AutoActivate=Yes

2. I have a Nvidia 8400SE Graphics card. Is there any difference between driver installation via WINNT.SIF

[Unattended]

OemPnPDriversPath="Drivers\000_intel_INF;Drivers\001_gigabit_LAN;Drivers\002_monitor"

DriverSigningPolicy=Ignore

and

Running the installer (silent mode or otherwise)

Thank you.