thanx Alanoll .. its nice info. btw .. what i really meant that the whole xpcreate process took me over an hour to finish on my machine. and i had made an error in the winnt.sif file thus, i was relieved when i was able to edit the iso and replace the winnt.sif file without going over the whole process again coming back to the point, it looks like i made a stone age post and everyone seems to know about magiciso and ultraiso .. so mods, kindly remove this topic when it deems fit. thanx all.