The Dynamics GP Support and Services blog has more info on the GP 2013 – Business Analyzer application for Windows 8
GP 2013 – Business Analyzer application for Windows 8 – Dynamics GP Support and Services Blog – Microsoft Dynamics GP – Microsoft Dynamics Community
Microsoft & the GP EcosystemReporting & BIInstall, Upgrade & AdminGP 2013
Archived post from 2013. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.