Microsoft KB Archive/107757

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Knowledge Base

PC MAPI: MapiSaveMail Is Inconsistent When Passed NULL

Article ID: 107757

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 Q107757


In Messaging Application Program Interface (MAPI) from versions 3.0, 3.0b and 3.2 of Microsoft Mail for PC Networks, the MapiSaveMail function is not consistent when passed the NULL value.

If a message in the inbox contains subject and text, you can use MapiFindNext to retrieve the message ID value. You can use MapiSaveMail to change the subject and text, but if you change both to NULL, only the text actually changes; the subject does not.


The date also does not change when passed the NULL value.


Microsoft has confirmed this to be a problem in MAPI from versions 3.0, 3.0b, and 3.2 of Microsoft Mail for PC Networks. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

Additional query words: 3.00 3.00b 3.20

Keywords: KB107757