Nide tool, but the instructions are not verry clear. So you have to use it on a clean install, does this means: windowsXP SP1 without any update? Or will it work on a fully patched windows XP SP2? How about the updates of office, can they be included? And when do you have to run the program? First make an unattended version of office (create the mst file) Can this be done with a slipstreamd version of office (with al the updates?) And when I finaly have done a clean install of windows, do I have to run your program before installation of office? And after running your program, what will I get? Will the source files be reduced, and do I have to copy them to use in a new unattended CD? (yes yes, like many others I'm a newbie... And I spend too mutch time reading al the comments in postings )