Simple MAPI
[The use of Simple MAPI is discouraged. It may be altered or unavailable in subsequent versions of Windows.]
Simple MAPI is a set of functions and related data structures you can use to add messaging functionality to Windows-based applications written in C, C++, or Visual Basic.
For more information, see the following sections.
To use the Simple MAPI functions, compile your source code with Mapi.H, which contains definitions for all the functions, structures, constants, and data types. To call a Simple MAPI function, load Mapi32.dll and use the GetProcAddress function to acquire an entry point.
All strings passed to all MAPI calls and returned by all MAPI calls are null-terminated and must be specified in the current character set or code page of the caller's operating system process.