Lawson Software 10-Q 2011 Q1 Quarterly report

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. §1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the quarterly report of Lawson Software, Inc. (the Company) on Form 10-Q for the period ended August 31, 2010 as filed with the Securities and Exchange Commission on the date hereof (the Report), I, Harry Debes, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ HARRY DEBES

Harry Debes

President, Chief Executive Officer, and Director

October 6, 2010