Run REGEDIT and goto:
[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail]
Right-click and create a new key called Outlook64Bridge
Then right-click Outlook64Bridge and create two keys under it DLLPath and DLLPathEx
Find the 32 bit version of the file MAPI32.dll and assign the whole qualified pathname to each key, mine were:
HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\Outlook64Bridge\DLLPath
"D:\WINDOWS\system32\mapi32.dll"
HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\Outlook64Bridge\DLLPathEx
"D:\WINDOWS\system32\mapi32.dll"
Then go back to the root key name and show the default client as Outlook64Bridge
HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail
"Outlook64Bridge"
Works like a charm
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