Pity with KB943452 but no problem, I'll add it manually. Yes, it's strange with Chained Install. Now I have slipstreamed/installed Office twice with same result; the patch is added to ChainedInstall_1 but not installed. When I was doing these tests I noticed that the "Admin install location" is remembered by the Slipstreamer but not always the "Product Key" when ticked. Cheers