Article ID: 957384 - View products that this article applies to.
NoticeImportant This article contains information that shows you how to help lower security settings or how to turn off security features on a computer. You can make these changes to work around a specific problem. Before you make these changes, we recommend that you evaluate the risks that are associated with implementing this workaround in your particular environment. If you implement this workaround, take any appropriate additional steps to help protect the computer.
When the Microsoft Office 2007 Compatibility Pack Service Pack 1 is installed, you cannot open an encrypted Office Open XML file that contains a macro and that has one of the following extensions in Microsoft Office 2003:
Note An encrypted file is a file that you protect by using any of the following methods:
To resolve this problem, you must install the hotfix that is described in KB958703, and then you must disable antivirus scanning on encrypted files that contain macros.
How to obtain the hotfixThis issue is fixed in the 2007 Office system hotfix package that is dated October 28, 2008. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/958703/ )Description of the 2007 Office system hotfix package (Pptconv.msp, Wordconv.msp, Xlconv.msp): October 28, 2008
How to disable antivirus scanning on encrypted files that contain macrosImportant This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756Warning This workaround may make a computer or a network more vulnerable to attack by malicious users or by malicious software such as viruses. We do not recommend this workaround but are providing this information so that you can implement this workaround at your own discretion. Use this workaround at your own risk.
(http://support.microsoft.com/kb/322756/ )How to back up and restore the registry in Windows
To work around this issue, disable antivirus scanning on encrypted files that contain macros. To do this, follow these steps:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.