X0101 42003-05-23 0000789019 MICROSOFT CORP MSFT 0000902015 BALLMER STEVEN A 1100Chief Executive OfficerCommon Stock2003-05-234S01900624.32D425882126DCommon Stock2003-05-234S012994124.33D425752185DCommon Stock2003-05-234S031935324.34D425432832DCommon Stock2003-05-234S085822824.35D424574604DCommon Stock2003-05-234S015724524.36D424417359DCommon Stock2003-05-234S02484424.37D424392515DCommon Stock2003-05-234S010838824.38D424284127DCommon Stock2003-05-234S022177924.39D424062348DCommon Stock2003-05-234S096658624.4D423095762DCommon Stock2003-05-234S06004824.41D423035714DCommon Stock2003-05-234S034009024.42D422695624DCommon Stock2003-05-234S017739024.43D422518234DCommon Stock2003-05-234S024199324.44D422276241DCommon Stock2003-05-234S015590924.45D422120332DCommon Stock2003-05-234S050784624.46D421612486DCommon Stock2003-05-234S04044924.47D421572037DCommon Stock2003-05-234S04976524.48D421522272DCommon Stock2003-05-234S0260024.49D421519672DCommon Stock2003-05-234S05024.5D421519622DThis sale was effected pursuant to a 10b5-1 sales plan adopted by the reporting person.This Form 4 is the second of two forms to report all May 23, 2003 transactions for the reporting person.John A. Seethoff, Attorney-in-Fact for Steven A. Ballmer2003-05-27