WebStore, Installing MS Project and MS Visio along side MS Office 365 Pro Plus
You must use all traditional installers, (MSI) or all Click-to-Run installers (C2R).
Microsoft traditional installers (MSI) and Click-to-Run (C2R) installers cannot be combined on the same computer.
The MS Office installers for volume licenses are MSI installers. This would be from the WebStore offers:
Microsoft Office for UI-Owned Computers License & Download and Microsoft Desktop Package (Windows and Office) for UI IT Professionals.
The Project and Visio installers for volume license are also MSI installers. These would be from the WebStore offers:
Visio Professional Unit Use and Project Professional Unit Use.
This installer for the Office 365 version of Office Pro Plus is a C2R installer.
The installers for the free MS Imagine (formerly DreamSpark) versions of Project and Visio are also C2R installers.
The solution here is to determine which type to use, MSI or C2R, (usually determined by what free versions the customer qualifies for) and install the set for that type of installer.
Office 2016 Unit Use Volume License + Project Unit Use Volume License + Viso Unit Use Volume license (all MSI)
Office 365 ProPlus + MS Imagine Project + MS Imagine Vsio (all C2R)