Sitecore install error - Cannot retrieve the dynamic parameters

When attempting to install an instance of Sitecore 9 (update 2) I was getting the following errors from the SIF installation in PowerShell.

Install-SitecoreConfiguration : Cannot retrieve the dynamic parameters for the cmdlet. Retrieving the COM class factory for component with CLSID {688EEEE5-6A7E-422F-B2E1-6AF00DC944A6} failed due to the following error: 80040154 Classnot registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

In my case I had accidentally opened the x86 version of PowerShell as opposed to the standard. Re-opening the correct version and running the install again, allowed the installation to complete as expected.