Source Gear Vault would create a hidden directory, _sgbak, in the directories it versions. Unlike _svn directories or _cvs directories which also uses it for configuration purpose, _sgbak is mostly serving what the name says (backup). For example, if you are in the event of reverting your file back to an earlier version but having no connection to the server, you can simply dig out the file from _sgbak, and manually revert it yourself.
FOR /R %%f IN (_sgbak) DO IF EXIST "%%f" (
ATTRIB -h "%%f"
rd /s /q "%%f"