Back door passageway to DRM among other things?
http://www.theinquirer.net/?article=8472
A scheme being implemented by Office Depot almost certainly at Microsoft's behest means that companies that fail to join a logo scheme will find their XP products won't appear on store shelves unless they've been certified by Redmond.
Only products that conform to Microsoft's Designed for Windows XP rules and carry its logo will be sold in Office Depot after May this year, the INQUIRER has discovered. These rules apply to both software and hardware products, and suppliers have been given a deadline to either include the Microsoft logo or see their products disappear off the shelves.
http://www.theinquirer.net/?article=8472