SP Environment Functions

SETEXACT()     Determines if exact is on/off
GETDFP()       Gets SET DEFAULT path
ISLOADED()     Determines  function is loaded or not
RESTSETKEYS()  Restores  set keys saved with SAVESETKEYS()
SAVESETKEYS()  Saves all active set keys to an array, optionally
               clearing them
PRNPORT()      Determine Printer Port to use