$CPU 8086          ' make compatible with XT systems
$LIB ALL OFF       ' turn off all PowerBASIC libraries
$ERROR ALL OFF     ' turn off all PowerBASIC error checking
$OPTIMIZE SIZE     ' optimize for smaller code
 $COMPILE UNIT      ' compile to a UNIT (.PBU)
'$COMPILE EXE       ' compile to a UNIT (.PBU)

DEFINT A-Z         ' Required for all numeric functions, forces PB to not
                   ' include floating point in UNIT (makes it smaller)
'/*------------------------------------------------------------------*/
$CODE SEG "MLIB5"
'/*------------------------------------------------------------------*/
    FUNCTION ISNT() PUBLIC AS INTEGER
      IF INSTR(ENVIRON$("OS"),"Windows_NT") THEN FUNCTION = 1 ELSE FUNCTION = 0
    END FUNCTION
'/*------------------------------------------------------------------*/
'/*$INCLUDE "C:\CODE\MLIB\MLIB.INC"
'/*T = ISNT
'/*SAY 10,1,STR$(T),31
'/*Y$ = GETKEY