The exact error on the computer is: The following value in the .SIF file used by Setup is corrupted or missing: Value 0 on the line in section [SourceDisksFiles] with key "SP2.cab." Setup Cannot continue I searched the txtsetup.sif file on my local ISO and this is the line in question and the lines its surrounded by: sound999.wav = 1,,,,,,,,3,3 soundrec.chm = 1,,,,,,,21,0,0 soundrec.hlp = 1,,,,,,,21,1,0 sounds.chm = 1,,,,,,,21,0,0 sp2.cab = 100,,,,,,_x,39,0,0 sp2.cat = 100,,,,,,_x,,3,3 sp4100p.gpd = 1,,,,,,,,3,3 sp575050.ppd = 1,,,,,,,,3,3 The sad part is, the ISO installed windows fine on my virtual machine before I burned it! Do you think the disk got corrupted? I read the text from the CD too and its exactly the same. The Original XP CD was SP2 preloaded. I added hotfixes by /integrate. During creation I never manually edited or even opened the txtsetup.SIF file.. Only the WINNT.SIF file and then added programs and a batch file under $OEM$