You cannot manage ArcGIS Server services from different versions. You can only use the services (e.g. You can create a user connection to AGS v10.0 from desktop 10.2 and add it to ArcMap - this type of connection cannot manage the mapservice).
You cannot manage ArcGIS Server services from different versions. You can only use the services (e.g. You can create a user connection to AGS v10.0 from desktop 10.2 and add it to ArcMap - this type of connection cannot manage the mapservice).