Both microsoft visual source safe (VSS) and microsoft team system are source code versioning control software solutions. For many years VSS was microsoft's only version control solution but since 2005 microsoft released team system aswell. To learn about the differences between sourcesafe and team system please read overhere. Visual studio integration Visual sourcesafe integrates into Visual Studio seamlessy (just like teamsystem does, btw). You can add your code projects to the repository and check them in and out from sourcesafe from withing visual studio. VSS creates its own files to keep track of each directory ended with the SCC extension.

Since visual sourcesafe 2005 it's also possible to connect to the repository by ftp. Which makes it easier for non visual studio developers, or offsite developers to use visual sourcesafe. Even in case of discrepancies between the local copy and the repository copy it is always possible to easily merge these copies.