Your ? is too relative to the need of windows. I might need to format/partition you might now. I might need to create DNS\'s you might now...and so on and so on.
If you really want a basic but good example you will find one in your ref.chm in your depoy on your 2k/xp disc. Ive seen a few problem is that the ref.chm does not completely cover all possibilities...not by far. I would say that the largest example of a unattend.txt you will find in that deploy section will only cover about 10% of what i can do. For a full list of all options you will have to sign up on microsoft\'s website for the that membership whatever it might be. The old manual i once had but cannot find covered windows 2000 and it was over 1,000 page\'s long. COVERED EVERYTHING. Problem is they must of took that down off there website for i cant find it for the life of me. Either it\'s gone or you have to sign up. I think there is one for XP behind those\'s doors of membership i just have never registered EVER on microsoft.com and never will until i have too. You probably can find the .doc i am mentioning that is 1,000+ page\'s somewhere on the net. If i ever run into it again i will post it up for it\'s impossible to find. If you due find it on there website please post the url for i would like to have it again for sure.
To cover your ? more throughly...unless you have a home network of 4+ computers or work for a company that does you will not need more than what has already been posted. Most of those 1,000+ page\'s is only for network\'s. The hardware part for your need\'s can probably be taken care of with the OEM dir in the root as mentioned in the never ending thread about multi 2k os\'s on this page. The rest that you have not seen is really not needed and also alot of it no longer works with XP...well it does just not the same way. Again i have not seen the one for XP but i know some at school who study it for every flaw they can find and they have told me unattened install\'s is easier in and more efficent in XP...but with the cost of having it less flexible.
The fact you cannot set WINNT.SIF to ask the user what directory he want\'s to install XP to me is in itself good enough reason not to pursue it more. Alot of people don\'t seem to understand that if you want to install unattended without using a network, just straight off a cd, this is a HUGE headache because not all pc\'s you have to install to have the same install dir. Some have WINNT or WINDOWS, while some other\'s have SYSTEM or plain OS_SYSTEM or anything the user might of chosen to install to the day they installed. So you wind up having to make a couple different WINNT.SIF files and installing at different times due to that. HEADACHE. Now you can due this while you are installing over a network in a win32/win64 enviroment...but not off the cd.