PC MAPI: Using Simple MAPI on Windows NT and NTAS

 Last reviewed: November 1, 1995
Article ID: Q108842
The information in this article applies to:
  • Microsoft Mail for Windows, versions 3.0, 3.0b, and 3.2

The Simple Messaging Application Programming Interface (MAPI) can be used on Microsoft Windows NT and Microsoft Windows NT Advanced Server in the following configurations:

CONFIGURATION 1

Simple MAPI applications written for 16-bit Windows and Windows for Workgroups Mail can be used with the 32-bit NT Mail client. There is a 16- bit MAPI.DLL that "thunks" the 16-bit calls to the 32-bit MAPI32.DLL and requires no additional 16-bit Mail files.

Configuration 2

Windows NT includes MAPI32.DLL, a 32-bit Simple MAPI DLL for developing 32-bit applications for the 32-bit NT Mail client.

Configuration 3

In order for 16-bit MAPI applications to work with 16-bit Microsoft Mail installed on Windows NT, you must copy the 16-bit MAPI.DLL that comes with versions 3.0, 3.0b, and 3.2 of Microsoft Mail into the WINNT\SYSTEM32 directory.

Additional reference words: 3.00 3.00b 3.20
KBCategory: kbprg kbtlc
KBSubCategory: MailPCMAPI

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Last reviewed: November 1, 1995
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