X0202 4 2007-02-06 0000789019 MICROSOFT CORP MSFT 0000902012 GATES WILLIAM H III ONE MICROSOFT WAY REDMOND WA 98052 1 0 0 0 Common Stock 2007-02-06 4 S 0 100 29.56 D 937499236 D Common Stock 2007-02-06 4 S 0 8675 29.55 D 937490561 D Common Stock 2007-02-06 4 S 0 14000 29.54 D 937476561 D Common Stock 2007-02-06 4 S 0 26500 29.53 D 937450061 D Common Stock 2007-02-06 4 S 0 17500 29.52 D 937432561 D Common Stock 2007-02-06 4 S 0 145600 29.51 D 937286961 D Common Stock 2007-02-06 4 S 0 71025 29.50 D 937215936 D Common Stock 2007-02-06 4 S 0 39600 29.49 D 937176336 D Common Stock 2007-02-06 4 S 0 27700 29.48 D 937148636 D Common Stock 2007-02-06 4 S 0 12800 29.47 D 937135836 D Common Stock 2007-02-06 4 S 0 9700 29.46 D 937126136 D Common Stock 2007-02-06 4 S 0 12600 29.45 D 937113536 D Common Stock 2007-02-06 4 S 0 10100 29.43 D 937103436 D Common Stock 2007-02-06 4 S 0 14100 29.42 D 937089336 D Common Stock 2007-02-06 4 S 0 22700 29.41 D 937066636 D Common Stock 2007-02-06 4 S 0 16000 29.40 D 937050636 D Common Stock 2007-02-06 4 S 0 12500 29.39 D 937038136 D Common Stock 2007-02-06 4 S 0 1600 29.37 D 937036536 D Common Stock 2007-02-06 4 S 0 9600 29.36 D 937026936 D Common Stock 2007-02-06 4 S 0 7500 29.35 D 937019436 D Common Stock 2007-02-06 4 S 0 5200 29.34 D 937014236 D Common Stock 2007-02-06 4 S 0 6000 29.33 D 937008236 D Common Stock 2007-02-06 4 S 0 1400 29.32 D 937006836 D Common Stock 2007-02-06 4 S 0 28335 29.31 D 936978501 D Common Stock 2007-02-06 4 S 0 127965 29.30 D 936850536 D Common Stock 2007-02-06 4 S 0 146159 29.29 D 936704377 D Common Stock 2007-02-06 4 S 0 18800 29.28 D 936685577 D Common Stock 2007-02-06 4 S 0 23600 29.27 D 936661977 D Common Stock 2007-02-06 4 S 0 75900 29.26 D 936586077 D Common Stock 2007-02-06 4 S 0 86741 29.25 D 936499336 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 2007-02-08