X0202 4 2007-07-24 0000789019 MICROSOFT CORP MSFT 0000902012 GATES WILLIAM H III ONE MICROSOFT WAY REDMOND WA 98052 1 0 0 0 Common Stock 2007-07-24 4 S 0 5400 30.84 D 893824606 D Common Stock 2007-07-24 4 S 0 36900 30.83 D 893787706 D Common Stock 2007-07-24 4 S 0 11675 30.82 D 893776031 D Common Stock 2007-07-24 4 S 0 2600 30.81 D 893773431 D Common Stock 2007-07-24 4 S 0 21825 30.80 D 893751606 D Common Stock 2007-07-24 4 S 0 16670 30.79 D 893734936 D Common Stock 2007-07-24 4 S 0 62200 30.78 D 893672736 D Common Stock 2007-07-24 4 S 0 30800 30.77 D 893641936 D Common Stock 2007-07-24 4 S 0 31300 30.76 D 893610636 D Common Stock 2007-07-24 4 S 0 47300 30.75 D 893563336 D Common Stock 2007-07-24 4 S 0 25700 30.74 D 893537636 D Common Stock 2007-07-24 4 S 0 22100 30.73 D 893515536 D Common Stock 2007-07-24 4 S 0 16200 30.72 D 893499336 D In addition, there are 425,066 shares owned by reporting person's spouse. The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purposes. * Duly authorized under Special Power of Attorney appointing Michael Larson attorney-in-fact, dated February 3, 2006, by and on behalf of William H. Gates III, filed as Exhibit 99.1 to Cascade Investment, L.L.C.'s Amendment No. 2 to Schedule 13G with respect to Arch Capital Group Ltd. on March 7, 2006, SEC File No. 005-45257, and incorporated by reference herein. William H. Gates III By: /s/ Michael Larson*, Attorney-In-Fact 2007-07-26