Question:
How do I meet the VSTO requirement for Spitfire’s Office Integration?
How do I fix the message “VSTO 2012 Runtime x64 could not”?
Answer:
Try this link before running our prerequisite installer
http://www.microsoft.com/en-us/download/details.aspx?id=44074
Additional Comments:
The version supplied here works well with Microsoft Office 2007, 2010 and 2013.
If errors persist, try a reboot.
KBA-01608; Last updated: September 20, 2017 at 9:04 am;
Keywords: Visual