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Microsoft KB Archive/107355

From BetaArchive Wiki
Knowledge Base

PC Win: Custom Message Class Not Maintained Through Gateway

Article ID: 107355

Article Last Modified on 10/30/2006


  • Microsoft Mail Client 3.0
  • Microsoft Mail Client 3.0
  • Microsoft Mail Client 3.2

This article was previously published under Q107355


When you read a custom message that was sent via a gateway in version 3.0, 3.0b, or 3.2 of Microsoft Mail for Windows, the custom message class may not be preserved and the message will display in standard note form. This problem can occur when a message of a custom message class is sent through a nonencapsulating gateway.


Custom message classes that are defined without a text map are not preserved when they are sent through nonencapsulating gateways. The message will arrive with the custom message type incorrectly reset to:

IPM.Microsoft Mail.Note

This problem can occur when mail is sent in one of the following scenarios:

  1. A custom message type is sent from a user running on one type of mail system through a nonencapsulating gateway to a user on a different type of mail system (for example, Mail for PC Networks to MCI Mail).
  2. A custom message type is sent from a user on a specific mail system to a user on the same kind of mail system through a foreign mail system whose gateways do not support encapsulation (for example, Mail for PC Networks through MCI Mail to Mail for PC Networks).


Microsoft has confirmed this to be a problem in versions 3.0, 3.0b, and 3.2 of Microsoft Mail for Windows. This problem was corrected in MSSFS.DLL, version If you do not have version (or later), you can download MSSFS.EXE, a self-extracting file, on the following services:

  • Microsoft's World Wide Web Site on the Internet

On the home page, click the Support icon.
Click Knowledge Base, and select the product.
Enter kbfile MSSFS.EXE, and click GO!
Open the article, and click the button to download the file.

  • Internet (anonymous FTP)

Change to the Softlib/Mslfiles folder.

  • The Microsoft Network

On the Edit menu, click Go To, and then click Other Location.
Type mssupport.
Double-click the MS Software Library icon.
Find the appropriate product area.
Locate and Download MSSFS.EXE.

For additional information about downloading, please see the following article in the Microsoft Knowledge Base:

119591 How to Obtain Microsoft Support Files from Online Services

Additional query words: 3.00 3.00b 3.20

Keywords: KB107355