Antigen 9.0 for Exchange with Service Pack 1 will not stop scanning a nested MSG file that is in an e-mail message when it reaches its Max Nested Attachment limit as defined in the General Options panel

A nested MSG file that is in an e-mail message can be contained directly in another MSG file as a sub-storage. When this MSG file is processed by the Structure Storage Navigator, this nesting is not included in the nested attachment count that is maintained in the WorkThread ScanCompressedFile routine. Therefore, Microsoft Antigen 9.0 for Exchange with Service Pack 1 will not stop scanning the message when it reaches its Max Nested Attachment limit as defined in the General Options panel.

Note This behavior may cause a memory resource issue.

To resolve this problem, install Hotfix Rollup 5 for Antigen 9.0 with Service Pack 1.

For more information, click the following article number to view the article in the Microsoft Knowledge Base: Note You must install Antigen 9.0 for Exchange Service Pack 1 before you install Hotfix Rollup 5 for Antigen 9.0 Service Pack 1.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.