This article lists the different versions of Microsoft Outlook 2002, Microsoft Office Outlook 2003, and Microsoft Office Outlook 2007 and describes how you can determine the version that you have installed on your computer. Links are provided at the bottom of the article for Microsoft Outlook 97, and Outlook 2000 version information.

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To determine the version of Outlook that you use, follow these steps:

1.	Start Outlook.
2.	On the Help menu, click About Microsoft Office Outlook.
3.	Verify the version information and the build number to determine the version of Outlook that is installed on your computer.

The following information lists the version information and the build numbers for the U.S. versions of Microsoft Outlook.

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Outlook 2007 version information

Outlook 2007 (12.4518.1014)

This is the original RTM release of Outlook 2007.

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Outlook 2003 version information

Outlook 2003 (11.0.5608.5606)	The original release version of Outlook 2003 was released in October of 2003.
Outlook 2003 (11.0.5608.5703)	This is a Microsoft Office 2003 critical update that was released on November 4, 2003. For more information about the Office critical update, click the following article number to view the article in the Microsoft Knowledge Base: 828041 (http://support.microsoft.com/kb/828041/) Description of the Office 2003 critical update: November 4, 2003
Outlook 2003 (11.6359.6360)	This is the Microsoft Office 2003 Service Pack 1 release version.
Outlook 2003 (11.6568.6568)	This is the Microsoft Office 2003 Service Pack 2 release version.

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Outlook 2002 version information

Outlook 2002 (10.0.2627.2625)	The original version of Outlook 2002 is included with all Microsoft Office XP versions.
Outlook 2002 (10.2930.2625)	For more information, click the following article number to view the article in the Microsoft Knowledge Base: 300550 (http://support.microsoft.com/kb/300550/) Description of the Outlook 2002 Update: June 21, 2001
Outlook 2002 (10.3117.2625)
	For more information, click the following article number to view the article in the Microsoft Knowledge Base: 303835 (http://support.microsoft.com/kb/303835/) The Outlook View Control exposes a security vulnerability in Outlook 2002
Outlook 2002 (10.3311.2625)
	For more information, click the following article number to view the article in the Microsoft Knowledge Base: 300551 (http://support.microsoft.com/kb/300551/) Description of the Outlook 2002 update: October 4, 2001
Outlook 2002 (10.0.3513.3501)	For more information about list of Outlook 2002 issues that are fixed in Office XP Service Pack 1, click the following article number to view the article in the Microsoft Knowledge Base: 311573 (http://support.microsoft.com/kb/311573/) Description of the issues that are fixed in Outlook 2002 by the Office XP Service Pack 1
Outlook 2002 (10.0.4219.4219)	For more information about a list of Outlook 2002 issues that are fixed in Office XP Service Pack 2, click the following article number to view the article in the Microsoft Knowledge Base: 325675 (http://support.microsoft.com/kb/325675/) Description of Microsoft Office XP Service Pack 2
Outlook 2002 (10.4608.4219)	For more information, click the following article number to view the article in the Microsoft Knowledge Base: 331866 (http://support.microsoft.com/kb/331866/) Description of the Outlook 2002 update: December 4, 2002
Outlook 2002 (10.4712.4219)	For more information, click the following article number to view the article in the Microsoft Knowledge Base: 812262 (http://support.microsoft.com/kb/812262/) Overview of the Outlook 2002 update: January 22, 2003
Outlook 2002 (10.0.6515.6626)	For more information about a list of Outlook 2002 issues that are fixed in Office XP Service Pack 3, click the following article number to view the article in the Microsoft Knowledge Base: 836033 (http://support.microsoft.com/kb/836033/) List of the issues that are fixed in Outlook 2002 by Office XP Service Pack 3

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Outlook 2000 version information

For more information about available Outlook 2000 versions and build numbers, click the following article number to view the article in the Microsoft Knowledge Base:

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Outlook 97 version information

For more information about available Outlook 97 versions and build numbers, click the following article number to view the article in the Microsoft Knowledge Base:

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