In an enterprise environment, you usually have several locked down Windows servers (either Windows servers/Terminal server directly, or through Citrix) where the user is logged in directly into a full window application.
There are several escape techniques from such environments, but when you have an open/save dialog, is there any way to restrict the users ability to access \127.0.0.1\c$ from such System dialogs?
when you say c$ you are talking about a hidden share, your users must be in the local admins group. if they are not administrators then take them out of that group