From: ldo@nz.invalid   
      
   It can be helpful for GUI-based editors, like Emacs, to offer a “server   
   mode”. What this means is, instead of starting it up for every file you   
   want to edit, you leave it running, and use another command to tell it via   
   IPC to open selected files for editing. Such a command can be added as a   
   custom right-click menu item in common file managers, so you can just do   
   “Open In Editor” on any file while browsing directories.   
      
   In Emacs, this is done with the “emacsclient” command. This can be invoked   
   in blocking mode (wait until Emacs signals the edit is done before   
   proceeding), or non-blocking mode as “emacsclient -n”, where it just tells   
   Emacs to open the file and then immediately exits.   
      
   The latter is the natural one to use for such GUI invocation, though the   
   former one has its uses.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)