Before you can use the Check In/Check Out system, you must associate your local site with a remote server.
This option is useful to let others know that you checked out a file for editing, or to alert yourself that you may have left a more recent version of a file on another machine.
If your remote access option is Microsoft Visual SourceSafe, this is your only Check In/Check Out option. The remaining options in this section apply to FTP, Local/Network, WebDAV, and RDS access methods only.
If you do not see Check In/Out options, it means that you have not set up a remote server.
Using File > Open to open a file doesn’t check the file out even when this option is selected.