You can download the Update Rollup 9 for Microsoft Dynamics CRM 4.0 :
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=5869f2b3-d1a0-4f71-8be3-fde6e8053a2e
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Important*
Update Rollup 7 is a prerequisite to this update rollup.
Microsoft Dynamics CRM for Microsoft Office Outlook and Microsoft Dynamics CRM Data Migration Manager components requier Update Rollup 7 to be installed.
