I have been trying to integrate SP3 & IE7 with my XP Pro. This last time, I used HFSLIP to slipstream WMP11. I used nLite 1.4.9.1 to slipstream SP3 & IE7 & all the patches. I then used nLite to burn the CD. The latest error message I get is just after the format is done. This is the message: The following value in the .SIF file used by setup is corrupted or missing: Value 0 on the line in section [WinntDirectories] with key "999". This is getting very frustrating. Being able to make a custom CD cuts down on a TON of my time but I can NOT get this to work correctly. Anyone have any ideas?