IN THE UNITED STATES DISTRICT COURT

FOR THE DISTRICT OF COLUMBIA

STATE OF NEW YORK et al.,

Plaintiffs,

v.

MICROSOFT CORPORATION,

Defendant.

Civil Action No. 98-1233 (CKK)

Next Court Deadline:

November 15, 2007

Supplemental Status Report

MOTION OF THE UNITED STATES FOR

LEAVE TO PARTICIPATE AS AMICUS CURIAE

For the reasons set forth in the accompanying Memorandum of Points and Authorities, the United States respectfully requests leave to file the attached brief as amicus curiae.

Dated: November 9, 2007

Respectfully submitted,

FOR THE UNITED STATES

DEPARTMENT OF JUSTICE'S

ANTITRUST DIVISION

/s/

AARON D. HOAG

JAMES J. TIERNEY

SCOTT A. SCHEELE

PHILIP A. GIORDANO

ADAM T. SEVERT

Trial Attorneys

U.S. Department of Justice

Antitrust Division

600 E Street, N.W.

Suite 9500

Washington, D.C. 20530

202/514-8276