https://www.tntware.com/tntconnect/help/faq_en/pages/will-tntconnect-3-1-run-correctly-when-the-64-bit-edition-of-office-is-installed.aspxThe latest version of TntConnect has been tested to be compatible with the 64-bit edition of Office. To check if you're on the latest version, under the " Help " menu, and click on " Check for Updates ". But, if you're getting one of these errors: MultipleenCommunityServer 2008.5 SP2 (Debug Build: 40407.4157)