When you use the PUT command together with the PROPATCH method in Exchange Server 2003 Service Pack 1, the message size that appears is not correct

When you use the PUT command together with the WebDAV PROPATCH method to work with messages in Microsoft Exchange Server 2003 Service Pack 1 (SP1), you experience the following symptom. When you first run the PUT command followed by the PROPATCH method, the message size that appears is correct. However, after you run the PUT command again to modify that particular message, the message size that appears is not correct.

This problem occurs because of a calculation error in Exchange 2003 SP1. When you modify a message by using the PUT command, the message overwrite operation converts the message to MIME format. When you run the PROPATCH method to modify this message, the PROPATCH method causes the message to be converted from MIME format to MAPI. After this conversion is finished, the message size that appears is correct. However, when you run the PUT command again to perform a MIME overwrite operation to modify this message, the message is converted from MAPI to MIME format. During this message conversion operation, the message size is incorrectly calculated. In this situation, the message size is incorrectly increased by the size of the message body after each PUT command and PROPATCH method combination.

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

Because of file dependencies, you must be running Exchange 2003 Service Pack 1 (SP1) to install this hotfix. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Restart requirement

You do not have to restart the computer after you apply this hotfix. However, if you are running a particular program that locks some of the DLL files that this hotfix replaces, you must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

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

After you install this hotfix, message sizes are correctly calculated when you modify messages by using the PUT command together with the PROPATCH method.

Important This hotfix does not restore message sizes that have been incorrectly calculated by Exchange when you previously used the PUT command together with the PROPATCH method. For example, consider the following example scenario:

1. You run a program that uses the PUT command together with the PROPATCH method to modify a message that has a file size of 504 bytes.
2. The message size is incorrectly calculated and set to 2048 bytes.
3. You install the hotfix that is mentioned in this article.
4. You again run the program to modify this message.

In this situation, the message size is not reset to 504 bytes. The message size remains at 2048 bytes. However, the message size no longer incorrectly increases.

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