Exceptions
Break               Funct Send <CTRL-ALT-c>.
BreakLock           Funct Disables <CTRL-ALT-c>.
BreakUnlock         Funct Reenables <CTRL-ALT-c> and issues any pending breaks.
PutExcept           Funct Print exception msg and catch exception.
throw               Funct ch can be up to 8 chars like PutChars().