I have been going over documentation on Visual SourceSafe to decide if to use or not. One thing is not clear. It says I can take an existing project and put it under source control, creating the source controlled project. Does this mean the project and all of it's files are duplicated? Also, the projects I work on are on a network drive to facilitate a multi-developer environment. How does Visual SourceSafe prevent someone from just accessing the project or one of it's files directly?

Any input greatly appreciated as I have to make a decision on this soon.