The error is usually caused when one of the two files for the Word Add-in are not loaded. In Word go to “Tools > Templates and Add-ins” and under “Checked items are currently loaded” make sure that both of the files that start with “EN” are checked. If either are not, add the check and click “OK”. If you see a message asking if you want to continue opening the file, click “OK”, because you will want to open the file.
If both of the files are checked, go to “Tools > Macro > Security” and set your security level to High. Then click on the “Trusted Publishers” tab and make sure that “Trust all installed add-ins and templates” is checked.
Additional information can be found on our website at:http://www.endnote.com/support/faqs/CWYW/faq4.asp