New Post: Cannot access Outlook 2013 64-bit files

I too am trying to resolve an Outlook 2013 problem and am also running 64-bit Outlook on Windows 8 64-bit. I downloaded the 64 bit version of MFCMAPI from February of this year but it's not working. I get the error message "Either there is no default mail client or the current mail client cannot fulfill the messaging request." Outlook is set as the default.