| Navigation: Language Reference > 13 - Built-in Functions >====== CHAIN (execute another program) ====== |    |
CHAIN(program)
| CHAIN | Terminates the current program and executes another. |
| program | A string constant or variable containing the name of the program and optional command line parameters to execute. This may be any .EXE or .COM program. |
CHAIN terminates the current program, closing all files and returning its memory to the operating system, and executes another program.
Example:
PROGRAM !MainMenu program code
CODE
EXECUTE CHOICE()
CHAIN('Ledger') !Execute LEDGER.EXE
CHAIN('Payroll /Test=1 /N=2') !Execute PAYROLL.EXE with parameters
RETURN !Return to O/S
END
PROGRAM !Ledger program code
CODE
EXECUTE CHOICE()
CHAIN('MainMenu') !Return to MainMenu program
RETURN !Return to O/S
END
PROGRAM !Payroll program code
CODE
EXECUTE CHOICE()
CHAIN('MainMenu') !Return to MainMenu program
RETURN !Return to O/S
END
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