Any user can put a lock on a file so that other users cannot work on it at all.
Important
This can be an inconvenient command. If you do lock a file, make sure that you unlock it. Else no other user can the work on that same file.
NOTE
In some situations, you may want Git Winch to automatically lock a file the moment you launch it into an application. To do that, you need to give the following configuration in the gitwinch.ini file (Load that in a text-editor like notepad and make the changes)
LockOnLoad=1
This configuration should be made in the System Category of the .ini file. If indeed Git Winch auto-locks files (when you launch them) it will pop-up a message reminding you that you must unlock the said file(s) after your work is done. Else other users who want to work on the file would be inconvenienced.