VERIFIED SOLUTION i

Resolve EngageOne Content Author V5.6 Admin installation error

Issue

An error was encountered while installing Content Author Administration Client on Windows 7 Professional SP1 x64.

Cause

Version 5.6 of Content Author is not supported with Windows 7 64 bit.

Resolution

UPDATED: November 8, 2017
Support for this was introduced with V6 of Content Author.
Environment Details
Product Feature: Installation / Upgrade