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Important This article contains information about how to modify the registry. Make sure to back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows registry
When you try to perform a mail merge by using a Microsoft Office Outlook 2003 Contact List or Address Book together with a Microsoft Office Word 2003 mail merge main document, Word 2003 cannot locate the Address Book that you specified. Therefore, the mail merge is not completed.
This problem may occur when there are more than 1,028 Address Books that are listed in the Select Contact List Folder dialog box.
Note This problem occurs when you are connected to a computer that is running Microsoft Exchange Server. This problem does not occur when you use Cached Exchange Mode in Outlook 2003.
This problem was first fixed in a hotfix that is now contained in a service pack. If you installed the latest Office 2003 service pack, you do not have to install the hotfix.
Service pack information
This problem is corrected in Office 2003 Service Pack 2.
To resolve this problem, obtain the latest service pack for Office 2003. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
870924 How to obtain the latest service pack for Office 2003
After you install the service pack, follow the steps that are listed in the "More Information" section to set the AddressBookNameMax4096 registry value and to enable the hotfix.
How to obtain the hotfix
This issue is fixed in the Office 2003 post-Service Pack 1 Hotfix Package that is dated April 13, 2005. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
897175 Description of the Microsoft Office 2003 post-Service Pack 1 hotfix package: April 13, 2005
After you install this hotfix, follow the steps that are listed in the "More Information" section to set the AddressBookNameMax4096 registry value and to enable the hotfix.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall your operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.
To enable this hotfix, follow these steps:
Quit your Office 2003 programs.
Click Start, click Run, type regedit, and then click OK.
Locate and then click the following registry subkey: