GeoMedia Smart Client offers a direct integration to ActiveDirectory (AD).
To enable Single Sign-On on the client side add sso=true to your GMSC url.
At startup time of GMSC the applications compares the list of AD groups to the GMSC roles and assigns all where the name matches.
Active Directory Groups assigned to the user:
Smart Client Roles:
In this case the user gets automatically all permissions granted who are assigned to the GIS-Users role and GIS-Administrators role.
Note: You don't have to setup any users in the GMSC environment! Only the roles must be configured in GMSC.