I need a help, please! So, I've created an Administrative Installation Point using my Office11 Pro CD and slipstreamed SP2 & all Hotfixes following this. After that I've successfully installed updated Office form HD. But, after burning (with Nero and UltraISO) my Updated Administrative Installation Point on CD I can't install Office from this CD. I tried to do it on several Windows machines and I always had this error To insert my original Office CD doesn't help . On the net I found the needed DLL Microsoft.Office.Interop.InfoPath.SemiTrust.dll is included in Office 2003 PIA download. I downloaded this package and I tried to incorporate it in my Administrative Installation Point without success . Any help would be very appreciated!