Category Archives: Outlook

msiexec 1603 errors Outlook addin uninstall fails

Some useful troubleshooting steps when you cannot remove or install an updated Outlook addin – 1. Run the installer from the command line calling the /lv switch to enable logging and review the log for clues. example – msiexec /i “c:\msitest\installer.msi” /qn /lv “c:\msitest\installer.log” (replace ‘installer’ with the relevant installer name) 2. Fix problems with the… Read More »

Outlook 2016 will not open word attachments

Have you seen the error “word experienced an error trying to open the file” when using Outlook 2016? This is because the Office trust settings are preventing you from opening untrusted files. Follow these steps to work around the issue – Close Outlook Open Word Go to File and Options Go to Trust settings, and… Read More »

Outlook 2016 – Office 365 sends attachments as winmail.dat

A customer complained that when sending emails from a PC to his Mac all attachments would be received as winmail.dat Ironically they sent as regular attachments under one windows profile but were always received as winmail.dat when sent from the second profile. On inspection the usual suspects were set correctly, that is check that messages… Read More »