Update Rollup 3 for Exchange Server 2007 Service Pack 2 (KB979784)  
Update Rollup 3 for Exchange Server 2007 Service Pack 2 (SP2) resolves issues that were found in Exchange Server 2007 SP2 since the software was released. This update rollup is highly recommended for all Exchange Server 2007 SP2 customers.
Description of Update Rollup 3 for Exchange Server 2007 Service Pack 2
Size: 44.7 MB - 93.6 MB

Update Rollup 2 for Exchange Server 2007 Service Pack 2 (KB972076)  
Update Rollup 2 for Exchange Server 2007 Service Pack 2 (SP2) resolves issues that were found in Exchange Server 2007 SP2 since the software was released. This update rollup is highly recommended for all Exchange Server 2007 SP2 customers.
Description of Update Rollup 2 for Exchange Server 2007 Service Pack 2
Size: 44.7 MB - 93.6 MB 

Exchange Server 2007 Service Pack 2 (x86 and x64) - US 
Microsoft Exchange Server 2007 Service Pack 2 (SP2) has been designed specifically to help meet the challenges of any business and the needs of all the different groups with a stake in the messaging system. Exchange Server 2007 SP2 is a mission-critical communications tool that enables employees to be more productive and access their information anywhere and anytime while providing a messaging system that enables rich, efficient access to e-mail, calendar items, voice mail, and contacts. For the administrator, Exchange Server 2007 SP2 provides advanced protection options against e-mail security threats, such as spam and viruses, as well as the tools to help manage internal compliance and high availability needs.
Overview of the new features that are available in Exchange Server 2007 SP2
Size: 870.0 MB (x86) / 884.3 MB (x64)

Microsoft Exchange Server 2007 Management Tools (32-Bit) - US 
Exchange Server 2007 is a native 64-bit application that includes 64-bit management tools. You can use the management tools to administer your Exchange Server environment remotely. If the remote computer is running a 32-bit operating system, you will need to download the 32-bit management tools.
Size: 686.7 MB

Update Rollup 9 for Exchange Server 2007 Service Pack 1 (KB970162) - US  
Update Rollup 9 for Exchange Server 2007 Service Pack 1 (SP1) resolves issues that were found in Exchange Server 2007 SP1 since the software was released. This update rollup is highly recommended for all Exchange Server 2007 SP1 customers.
Description of Update Rollup 9 for Exchange Server 2007 Service Pack 1
Size: 63.5 MB - 133.4 MB 

Update Rollup 8 for Exchange Server 2007 Service Pack 1 (KB968012) - US 
Update Rollup 8 for Exchange Server 2007 Service Pack 1 (SP1) resolves issues that were found in Exchange Server 2007 SP1 since the software was released. This update rollup is highly recommended for all Exchange Server 2007 SP1 customers.
Description of Update Rollup 8 for Exchange Server 2007 Service Pack 1
Size: 63.4 MB - 133.1 MB 

Update Rollup 7 for Exchange Server 2007 Service Pack 1 (KB960384) - US 
Update Rollup 7 for Exchange Server 2007 Service Pack 1 (SP1) resolves issues that were found in Exchange Server 2007 SP1 since the software was released. This update rollup is highly recommended for all Exchange Server 2007 SP1 customers.
Description of Update Rollup 7 for Exchange Server 2007 Service Pack 1
Size: 61.9 MB - 128.6 MB 

Update Rollup 6 for Exchange Server 2007 Service Pack 1 (KB959241) - US 
Update Rollup 6 for Exchange Server 2007 Service Pack 1 (SP1) resolves issues that were found in Exchange Server 2007 SP1 since the software was released. This update rollup is highly recommended for all Exchange Server 2007 SP1 customers.
Description of Update Rollup 6 for Exchange Server 2007 Service Pack 1
Size: 62.0 MB - 128.7 MB 

Updaterollup 5 for Exchange Server 2007 Service Pack 1 (KB949870) - US 
Update Rollup 5 for Exchange Server 2007 Service Pack 1 (SP1) resolves issues that were found in Exchange Server 2007 SP1 since the software was released. This update rollup is highly recommended for all Exchange Server 2007 SP1 customers.
Description of Update Rollup 5 for Exchange Server 2007 Service Pack 1
Size: 62.0 MB - 128.7 MB 

Updaterollup 4 for Exchange Server 2007 Service Pack 1 (KB949870) - US 
Update Rollup 4 for Exchange Server 2007 Service Pack 1 (SP1) resolves issues that were found in Exchange Server 2007 SP1 since the software was released. This update rollup is highly recommended for all Exchange Server 2007 SP1 customers.
Description of Update Rollup 4 for Exchange Server 2007 Service Pack 1
Size: 39.2 MB - 80.1 MB 

Updaterollup 3 for Exchange Server 2007 Service Pack 1 (KB949870) - US 
Update Rollup 3 for Exchange Server 2007 Service Pack 1 (SP1) resolves issues that were found in Exchange Server 2007 SP1 since the software was released. This update rollup is highly recommended for all Exchange Server 2007 SP1 customers.
Description of Update Rollup 3 for Exchange Server 2007 Service Pack 1
Size: 32.6 MB - 66.9 MB

Updaterollup 2 for Exchange Server 2007 Service Pack 1 (KB948016) - US 
Update Rollup 2 for Exchange Server 2007 Service Pack 1 (SP1) resolves issues that were found in Exchange Server 2007 SP1 since the software was released. This update rollup is highly recommended for all Exchange Server 2007 SP1 customers.
Description of Update Rollup 2 for Exchange Server 2007 Service Pack 1
Size: 32.5 MB - 66.7 MB

Exchange Server 2007 Service Pack 1 (64-Bit) - US 
In Exchange Server 2007 SP1, several new features and improvements will extend the Anywhere Access capabilities of Exchange Server 2007 to help make employees more productive on whatever device they’re using, provide additional Operational Efficiency tools for administrators seeking a streamlined management and deployment experience, and enable advanced Built-in Protection for more robust high availability and compliance scenarios.
Overview
Size: 840.6 MB

Exchange Server 2007 Service Pack 1 (32-Bit) - US 
In Exchange Server 2007 SP1, several new features and improvements will extend the Anywhere Access capabilities of Exchange Server 2007 to help make employees more productive on whatever device they’re using, provide additional Operational Efficiency tools for administrators seeking a streamlined management and deployment experience, and enable advanced Built-in Protection for more robust high availability and compliance scenarios.
Overview
Size: 854.7 MB