Missing MAPI32.DLL in .dll files loaded by the application - Can't send invoices through Outlook

Question

Hil guys and galls, 
 I've been looking for a reason why I can't send my invoices by e-mail through Sage 50 and, after having read so many topics in the forums, I finally found out a very probable reason : my Sage 50 application seems to not load the MAPI32.DLL driver at start up. 
 
 The driver IS present on my machine, but how do I get it to be loaded by Sage when I start the application? 
 Thank you for your answers, 
 Mathieu

RandyW · Answer

Mr. Mth said: my Sage 50 application seems to not load the MAPI32.DLL driver at start up. 
 Hi Mathieu, 
 The tested fix I came up with on a 64 bit OS with a 32 bit Office 2013/2016 click-to-run install , is to check for, and add this missing Registry key if necessary: 
 ---------------------------------------------------------------------------------------------------------------------------- 
 Windows Registry Editor Version 5.00 
 
 [HKEY_LOCAL_MACHINE\SOFTWARE\ Wow6432Node \Microsoft\Windows Messaging Subsystem] 
 "MAPI"="1" 
 ----------------------------------------------------------------------------------------------------------------------------- 
 If that key is missing from the 32 bit subsystem on a 64 bit workstation, Sage 50 will not load MAPI32.DLL, because that key is the way it checks for the existence of MAPI. 
 (used the Support Info from Help | About to find out WHAT, and PROCMON from SysInternals' ProcMon to find out WHY. 
 If your system is not 32 bit, then the above fix won't work, and probably won't be necessary, because there is no confusing 32 bit subsystem. 
 If your Outlook is not 32 bit, there is no fix, because Sage 50 (as of 2019) is 32 bit and can't load a 64 bit DLL. 
 I hope that helps, please post back! 
 
 Randy Wester

Sage 50 Canada

Missing MAPI32.DLL in .dll files loaded by the application - Can't send invoices through Outlook

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