Update Rollup 2 for Microsoft Dynamics CRM 4.0 is available. This update rollup is available for all languages that are supported by Microsoft Dynamics CRM 4.0.

The Below link contains the Issues addressed in this rollup

959419    Update Rollup 2 for Microsoft Dynamics CRM 4.0 is available
http://support.microsoft.com/default.aspx?scid=kb;EN-US;959419

You can download Rollup 2 form the following link

http://www.microsoft.com/downloads/details.aspx?FamilyID=aa671769-61e9-45c4-919f-c88199aa4241&displaylang=en

The update is applicable to the following CRM Components:

Microsoft Dynamics CRM 4.0 Server
Microsoft Dynamics CRM 4.0 Email Router
Microsoft Dynamics CRM 4.0 Outlook Client
Microsoft Dynamics CRM 4.0 Connector for SQL Reporting Services
Microsoft Dynamics CRM 4.0 Data Migration Manager Client

Update Rollup 1 for Microsoft Dynamics CRM 4.0 is not a prerequisite for the installation of Rollup 2. Rollup 2 is cumulative and contains all the fixes that were part of Rollup 1, Rollup 2 is language specific and hence the size is smaller than Rollup 1.

For more information, check the following Blog

Jibran Ali

CRM Support Escalation Engineer | EMEA CRM Support Team | GTSC UK MBS | Microsoft UK Ltd.