Saturday, June 25, 2016

VSTO general installer error 8007007E

If you are getting a "VSTO general installer error" with an error code of 0x8007007E while trying to install A VSTO Office add-in a possible reason is absence of the VSTO runtime.

Download the VSTO Runtime here: http://go.microsoft.com/fwlink/?LinkId=140384

Obviously, you need to make sure your deployment VSTO installer detects/installs the VSTO Runtime before trying to install the add-in or you may have this issue popping up here and there throughout your installation base.

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