FYI, as usual you can get the 'downloadable' CHM version of MSDN magazine here. Oh, and for furture reference, the url looks like this http://msdn.microsoft.com/msdnmag/issues/04/10/MSDNMag0410.chm so, to get the previous one you would do this : http://msdn.microsoft.com/msdnmag/issues/04/09/MSDNMag0409.chm