Permits explicit control on how long to wait for server shutdown. If all of the wait loops have been exhausted, and if it appears that some users are still not disconnected or that some files are still pending close, and if the wait specified with this key word has not been exceed, the server will retry its shut down loops. The new key word defaults to zero: no additional waiting. A negative values means to wait forever. A positive value specifies the time to wait. Due to sleeps within the shutdown loops, the actual wait time might exceed the specified time by an amount on the order of fifteen seconds, possibly more.