Microsoft KB Archive/104420

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PC Forms: Data Segment Error When Routing File

Article ID: 104420

Article Last Modified on 10/30/2006


  • Microsoft Exchange Electronic Forms Designer 5.0, when used with:
    • Microsoft Mail for PC Networks 3.0
    • Microsoft Mail for PC Networks 3.2

This article was previously published under Q104420


When you send a Microsoft Visual Basic .MAK file as an attachment to the routing form included with version 1.0 of Microsoft Electronic Forms Designer, you may receive the following error message when you attempt to open the file:

The associated application for the attached file FILENAME.MAK encountered a data segment error. (reason: 16)


This error is generated when another instance of the same .MAK file is already open in Microsoft Visual Basic.


Close any existing instances of the .MAK file before opening it from within the custom form.


Microsoft has confirmed this to be a problem in version 1.0 of Microsoft Electronic Forms Designer. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

Additional query words: 1.00 VB

Keywords: KB104420