<SUBMISSION>
<ACCESSION-NUMBER>0001354457-07-000316
<TYPE>25-NSE
<PUBLIC-DOCUMENT-COUNT>2
<FILING-DATE>20071012
<DATE-OF-FILING-DATE-CHANGE>20071012
<EFFECTIVENESS-DATE>20071012
<SUBJECT-COMPANY>
<COMPANY-DATA>
<CONFORMED-NAME>CDW CORP
<CIK>0000899171
<ASSIGNED-SIC>5961
<IRS-NUMBER>363310735
<STATE-OF-INCORPORATION>IL
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>25-NSE
<ACT>34
<FILE-NUMBER>000-21796
<FILM-NUMBER>071170095
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>200 N MILWAUKEE AVE
<CITY>VERNON HILLS
<STATE>IL
<ZIP>60061
<PHONE>8474656000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>200 N MILWAUKEE AVE
<CITY>VERNON HILLS
<STATE>IL
<ZIP>60061
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>CDW COMPUTER CENTERS INC
<DATE-CHANGED>19930322
</FORMER-COMPANY>
</SUBJECT-COMPANY>
<FILED-BY>
<COMPANY-DATA>
<CONFORMED-NAME>NASDAQ Stock Market LLC
<CIK>0001354457
<IRS-NUMBER>521165937
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>25-NSE
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>9600 BLACKWELL RD
<CITY>ROCKVILLE
<STATE>MD
<ZIP>20850
<PHONE>301-978-4144
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>9600 BLACKWELL RD
<CITY>ROCKVILLE
<STATE>MD
<ZIP>20850
</MAIL-ADDRESS>
</FILED-BY>
<DOCUMENT>
<TYPE>25-NSE
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<notificationOfRemoval>

    <schemaVersion>X0203</schemaVersion>

    <exchange>
        <cik>0001354457</cik>
        <entityName>NASDAQ Stock Market LLC</entityName>
    </exchange>

    <issuer>
        <cik>0000899171</cik>
        <entityName>CDW CORP</entityName>
        <fileNumber>000-21796</fileNumber>
        <address>
            <street1>200 N. Milwaukee Avenue</street1>
            <street2></street2>
            <city>Vernon Hills</city>
            <stateOrCountryCode>IL</stateOrCountryCode>
            <stateOrCountry>ILLINOIS</stateOrCountry>
            <zipCode>60061</zipCode>
        </address>
        <telephoneNumber>847.465.6000</telephoneNumber>
    </issuer>

    <descriptionClassSecurity>Common Stock</descriptionClassSecurity>

    <ruleProvision>17 CFR 240.12d2-2(a)(3)</ruleProvision>

    <signatureData>
        <signatureName>Tara Petta</signatureName>
        <signatureTitle>Director</signatureTitle>
        <signatureDate>2007-10-12</signatureDate>
    </signatureData>
</notificationOfRemoval>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.25
<SEQUENCE>2
<FILENAME>cdwc-form25.txt
<TEXT>
cdwc-form25
</TEXT>
</DOCUMENT>
</SUBMISSION>
