Hey Martin thnx mate, lets then clarify exactly what i want. This cd is intended to be used for my customers, so the only thing that i want is ONLY to add some apps that will be installed after Windows Setup, both 3 steps. The apps that i want to add is : .NET 1 & 2, DirectX 9, WMP 11, IE 7, Windows Defender and SP3. As for SP3 - WMP 11 - IE 7 ill intgrate them directly to the cd, i found the way how to. Now lets get back to the other sections. For the first section about WINNT.SIF its necessary to make STEP 4 in the Unattended Guide ?? Cause if it necessary here is what i missed about WINNT.SIF file. About section 3, for the .NET the guide says that you must create first an IExpress package to make that happend, but the link provided is BROKEN. If you click on that link that i give in my first post you'll see that is broken. About section 4, like i said i found a new workaround about it and slipstream the WMP 11 into the setup. Thanks for your time Martin.