Warnings During Synchronization of Offline Files

When you are using a group policy object to administratively assign offline files and configure the policy to exclude certain files, Windows XP clients may receive the following warning message during synchronization: The files listed are those that have one of the file extensions that is specified in the exclusion list of your offline files policy. However, despite the warnings, the synchronization completes.

By default, Windows XP displays all errors and warnings that occur during synchronization of offline files.

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:
To change this default behavior, use Registry Editor (Regedt32.exe) to locate the following key in the registry: Add the following registry value: You can add the following values and then quit Registry Editor:

This behavior is by design.