The Dynamics GP Support and Services Blog tackles the error message “Error: -Access to the path ‘C:ProgramDataMicrosoftMicrosoft Dynamics GP11.0.0.0’ is denied.”
Integration Manager for Microsoft Dynamics GP 2010 SP3 Build Issue
Development & IntegrationGP 2010
Archived post from 2012. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.