I am so close to completing my perfect unattended XP install cd I can taste it.  I have been at this for nearly four months now and today I ran my latest incarnation  -  everything went really well   no critical updates, no recommended updates  apart from one wee glitch.   My cd is a hybrid of Green Machine's XPCREATE (Indespensable) which I use to slipstream all the hotfixes and MSFN's XP / 2003 CD Guide (A life saver) which I am now getting into deeper to install various apps and reg tweaks post first boot.  Also, I have to say that this forum has been such a help and an absolutely fantastic education.  So, a huge thanks to everybody for all the knowledge shared here.   Anyway, back to my glitch.  Today I got a problem at the 13 mins to go stage.  A grey window popped up saying something to the effect that I had used an incorrect parameter.  Underneath there were a lot of various switches displayed - one of which I expect must have been the correct parameter.  Now, I have to admit, I have no idea just what exactly is going on at the 13 mins to go stage but I suspect it may have something to do with the reg tweaks?  I say this only because all the apps appear to be instaling fine post first boot.   The only other modification I have made to the cd recently was to add WNTIPCFG.EXE into the SVC-X2M folder during the XPCREATE phase.  Perhaps this could have something to do with it?  Anyway, I attach my reg tweaks file in the hope that someone can find something wrong with it. Thanks in advance. RegTweaks.reg RegTweaks.reg