BeepLength = nnnn (2): Sets the default BEEP length in system clock ticks
(approximately 1/18 of a second per tick). BeepLength is also the default
length for "error" beeps (for example, if you press an illegal key).
Created using Inf-PHP v.2 (c) 2003 Yuri Prokushev
Created using Inf-HTML v.0.9b (c) 1995 Peter Childs