This article was previously published under Q274778
This article has been archived. It is offered "as is" and will no longer be updated.
When you try to open a message in Microsoft Outlook 2000 Service Release 1/1a (SR-1/1a) that has the E-mail Security Update applied, Outlook 2000 may stop responding (hang).
For additional information about the Outlook 2000 E-mail Security Update, click the article number below to view the article in the Microsoft Knowledge Base:
262631 OL2000: Information About the Outlook E-mail Security Update
This problem can occur when the e-mail message contains an attachment that includes a long file name, over 256 characters, when Outlook has the E-mail Security Update applied. Without the E-mail Security Update, this problem does not exist.
To resolve this problem, obtain the latest service pack for Microsoft Office 2000. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
276367 OFF2000: How to Obtain the Latest Office 2000 Service Pack
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
This problem was first corrected in Microsoft Office 2000 Service Pack 2 (SP-2).