Office SP3 and File formats  —  In Office 2007, we changed the default to disable a number of older file formats where we saw very low usage and a high security risk in our code that loads these formats.  From the security standpoint, this is the right thing to do.

Source:   David LeBlanc’s Web Log

Author:   David Leblanc

Link:   http://blogs.msdn.com/david_leblanc/archive/2008/01…