With IE9 it was very easy to import this to MDT2012. I simply downloaded prerequisite KB2454826 and the IE9 msuhttp://go.microsoft.com/fwlink/?LinkId=210143 from Microsoft. Then in MDT2012 clicked Packages and the Import OS Packages. Selected both files and I was done. The prerequisite and IE9 will get installed during my Win7 x64 task sequence.
But now I want to add IE10 aswell but I can't find the correct procedure to do this. Can someone help?