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Information about the Project 2003 file formats that are blocked after you install Project 2003 Service Pack 3
Article ID: 941466 - View products that this article applies to.
This article contains information about some Microsoft Office Project 2003 file formats that are blocked by default after you install Microsoft Office Project 2003 Service Pack 3 (SP3). You may also experience this behavior after you install an update that is released after Service Pack 3. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/951646/ )Description of the behavior changes that occur after you install post-Office 2003 Service Pack 3 updates
Important 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:
(http://support.microsoft.com/kb/322756/ )How to back up and restore the registry in Windows
By default, the following file formats are blocked in Project 2003 SP3:
To enable the opening of files that are saved in previous Microsoft Project file formats, start Project, click Options on the Tools menu, click the Security tab, and then click Macro Security.
Additionally, you can modify the LegacyFiles registry entry to control the opening of these files in Project 2003. To do this, follow these steps: