CDW CORP

Certification of termination of registration of a class of securities (Section 12(g))

1.01,1.02,2.03,3.01,3.03,5.01,5.02,5.03,9.01

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Post Effective Amendment to S-8

Notification of removal from listing and/or registration on a national securities exchange

7.01

8.01,9.01

Other Events

General form for quarterly reports under Section 13 or 15(d)

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

2.02,9.01

Additional Information for Proxy Statement/ Votes

8.01,9.01

Additional Information for Proxy Statement/ Votes

No description available

Additional Information for Proxy Statement/ Votes

1.01,7.01,8.01,9.01

No description available

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Entry into a Material Definitive Agreement

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

8.01,9.01

Additional Information for Proxy Statement/ Votes

General form for quarterly reports under Section 13 or 15(d)

Results of Operations and Financial Condition

Annual Report Scanned (Paper)

8.01,9.01

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers

Results of Operations and Financial Condition

Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers

General form for quarterly reports under Section 13 or 15(d)

5.03,9.01

2.02,9.01

2.01,9.01

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

1.01,8.01,9.01

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

General form for quarterly reports under Section 13 or 15(d)

2.02,9.01

Annual Report Scanned (Paper)

Definitive Proxy Statement

Letter from the SEC

Annual report pursuant to Section 13 or 15(d)

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

General form for quarterly reports under Section 13 or 15(d)

Post Effective Amendment to S-8

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Annual Report Scanned (Paper)

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Definitive Proxy Statement

Prospectus filed under Rule 424(b)(1)

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933 (amendment)

Annual report pursuant to Section 13 or 15(d)

Registration statement under Securities Act of 1933

General form for quarterly reports under Section 13 or 15(d)

General form for quarterly reports under Section 13 or 15(d)

Registration statement under Securities Act of 1933 (amendment)

General form for quarterly reports under Section 13 or 15(d)

Registration statement under Securities Act of 1933

Annual Report Scanned (Paper)

Definitive Proxy Statement

Annual report pursuant to Section 13 or 15(d)

Preliminary Proxy Statement

General form for quarterly reports under Section 13 or 15(d)

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Required Information in Proxy Statement

Annual Report Scanned (Paper)

Definitive Proxy Statement

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933

No description available

Richards Thomas E

MENCOFF SAMUEL M

ZIEGLER ANN ELIZABETH

ZARCONE DONNA F

LEAHY CHRISTINE A

SELATI ROBIN P

CREAMER GLENN M

Dominguez Michael J

ROTHER CHRISTINA V.

STEVENS JONATHAN J

ALLEN BARRY K

SEGGERMAN VIRGINIA L

ALESIO STEVEN W

Berger Dennis G

CHERESKIN BENJAMIN D

NELSON JONATHAN M

CORLEY CHRISTINA M

FINNEGAN PAUL J

ECKROTE DOUGLAS E

TROKA MATTHEW A.