Via [WayBack] Hi all,I’m a bit stuck here with a “simple” task.Looks like Outlook 2016 doesn’t supports “MAPISendMail”, at least, if i trigger this, Thunderbird… – Attila Kovacs – Google+:
Basically only MAPISendMail works cross architecture and only if you fill all fields.
This edited [WayBack] email – MAPI Windows 7 64 bit – Stack Overflow answer by [WayBack] epotter is very insightful (thanks [WayBack] Rik van Kekem – Google+):
Calls to MAPISendMail should work without a problem.
For all other MAPI method and function calls to work in a MAPI application, the bitness (32 or 64) of the MAPI application must be the same as the bitness of the MAPI subsystem on the computer that the application is targeted to run on.
In general, a 32-bit MAPI application must not run on a 64-bit platform (64-bit Outlook on 64-bit Windows) without first being rebuilt as a 64-bit application.
For a more detailed explanation, see the MSDN page on Building MAPI Applications on 32-Bit and 64-Bit Platforms
–jeroen
The Wiert Corner - irregular stream of stuff 