"Windows XP SP3 does not include Windows Internet Explorer 7, although Windows XP SP3 does include updates to both Internet Explorer 6 and Internet Explorer 7, and it will update whichever version is installed on the computer." ..from the "Overview of Windows XP Service Pack 3" available here: http://www.microsoft.com/downloads/details...;displaylang=en It is a good read and contains the answers to pretty much everything one requires. I use OnePiece's "OnePiece_IE7AddOn_2.1.1_ENU" with no errors. Hi RickSteele, like I rode, I slipstreamed SP3, IE7 and WMP11 into my XP-SP2. And, yes SP3 contains the update, but when I slipstream the IE7 into my XP-CD with SP3, it does not apply this update to my IE7. I tried to evade the OS-Check of the KB947864 to get installed into my not updated IE7 under XP-SP3, but then the integrity-check fails. I think I have to wait, until the next cumulative IE7 update comes up ;-) I can just recommend everybody to include the KB947864 into your nlite-XP-SP3-CD, if you also include IE7, to have a workaround for this problem. I cannot use the OnePiece thing, because I need my IE7 and the updates in german. Thanks for your help