This installation is forbidden by system policy
msiexec /i Microsoft_DynamicsGP12_WebServices_x64_en-us.msi /qn+ /l*v install.log sqlserver="xxx" service_user_domain="xxx" service_user_name="xxx" service_user_password="xxx" security_store="SQL"
pause
Product: Web Services for Microsoft Dynamics GP 2013 -- The property 'SECURITY_STORE' is missing or invalid.
This installation supports only silent installation
Web Services for Microsoft Dynamics GP 2013 Setup failed