X0202 4 2007-02-07 0000789019 MICROSOFT CORP MSFT 0000902012 GATES WILLIAM H III ONE MICROSOFT WAY REDMOND WA 98052 1 0 0 0 Common Stock 2007-02-07 4 S 0 3 29.70 D 936499333 D Common Stock 2007-02-07 4 S 0 12000 29.69 D 936487333 D Common Stock 2007-02-07 4 S 0 2400 29.68 D 936484933 D Common Stock 2007-02-07 4 S 0 9000 29.65 D 936475933 D Common Stock 2007-02-07 4 S 0 8597 29.64 D 936467336 D Common Stock 2007-02-07 4 S 0 2500 29.61 D 936464836 D Common Stock 2007-02-07 4 S 0 28300 29.60 D 936436536 D Common Stock 2007-02-07 4 S 0 10400 29.59 D 936426136 D Common Stock 2007-02-07 4 S 0 8000 29.58 D 936418136 D Common Stock 2007-02-07 4 S 0 2200 29.57 D 936415936 D Common Stock 2007-02-07 4 S 0 5200 29.56 D 936410736 D Common Stock 2007-02-07 4 S 0 5900 29.55 D 936404836 D Common Stock 2007-02-07 4 S 0 23700 29.54 D 936381136 D Common Stock 2007-02-07 4 S 0 14200 29.53 D 936366936 D Common Stock 2007-02-07 4 S 0 7700 29.52 D 936359236 D Common Stock 2007-02-07 4 S 0 10000 29.51 D 936349236 D Common Stock 2007-02-07 4 S 0 3500 29.50 D 936345736 D Common Stock 2007-02-07 4 S 0 14500 29.49 D 936331236 D Common Stock 2007-02-07 4 S 0 27000 29.48 D 936304236 D Common Stock 2007-02-07 4 S 0 18700 29.47 D 936285536 D Common Stock 2007-02-07 4 S 0 13800 29.46 D 936271736 D Common Stock 2007-02-07 4 S 0 18100 29.45 D 936253636 D Common Stock 2007-02-07 4 S 0 104100 29.44 D 936149536 D Common Stock 2007-02-07 4 S 0 106000 29.43 D 936043536 D Common Stock 2007-02-07 4 S 0 41200 29.42 D 936002336 D Common Stock 2007-02-07 4 S 0 6800 29.41 D 935995536 D Common Stock 2007-02-07 4 S 0 21000 29.40 D 935974536 D Common Stock 2007-02-07 4 S 0 24900 29.39 D 935949636 D Common Stock 2007-02-07 4 S 0 117600 29.38 D 935832036 D Common Stock 2007-02-07 4 S 0 20800 29.37 D 935811236 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 2007-02-09