sap abap program for WS_EXECUTE to called External Program

How to work with ws_execute function module to call an external program?

ws_execute used for Calling Microsoft Word from ABAP

=>Let user type in the text file with Microsoft Word
Use WS_EXECUTE to activate Microsoft Word from ABAP.
After saving, exit from Microsoft Word and upload the files to Internal Table for printing.

REPORT ZWSEXECUTE.

DATA: BEGIN OF ITAB OCCURS 3,
     LINE(50),
     END OF ITAB.

PARAMETERS: PROG(70) DEFAULT
           'C:\Program Files\Microsoft Office\Office\WINWORD.EXE'.
PARAMETERS: FILE1(70) DEFAULT 'C:\TEMP\TEST.TXT'.
* Tick to print the Text file after saving from MS
WORDS
PARAMETERS: S_UP  AS CHECKBOX.
* Tick to create new or overwrite Text file
PARAMETERS: S_NEW AS CHECKBOX.

IF S_UP = 'X'.
  CALL FUNCTION 'GUI_UPLOAD'
       EXPORTING
            FILENAME        = 'FILE1'
       TABLES
            DATA_TAB        = ITAB
       EXCEPTIONS
            FILE_OPEN_ERROR = 1.

  IF SY-SUBRC = 0.
    LOOP AT ITAB.
      WRITE: / ITAB.
    ENDLOOP.
  ELSE.
    WRITE: / 'File open error.'.
  ENDIF.
ELSE.
IF S_NEW = 'X'.
  CALL FUNCTION 'GUI_DOWNLOAD'
       EXPORTING
            FILENAME = 'FILE1'
       TABLES
            DATA_TAB = ITAB
       EXCEPTIONS
            FILE_WRITE_ERROR              = 1
            NO_BATCH                      = 2
            GUI_REFUSE_FILETRANSFER       = 3
            INVALID_TYPE                  = 4
            OTHERS                        = 5.
ENDIF.
CASE SY-SUBRC.
    WHEN 1.
         WRITE: / 'GUI DOWNLOAD FILE WRITE ERROR'.
    WHEN 2.
         WRITE: / 'GUI DOWNLOAD NO BATCH'.
    WHEN 3.
         WRITE: / 'GUI DOWNLOAD GUI REFUSE
FILETRANSFER'.
    WHEN 4.
         WRITE: / 'GUI DOWNLOAD INVALID TYPE'.
    WHEN 5.
         WRITE: / 'GUI DOWNLOAD OTHERS'.
ENDCASE.

CALL FUNCTION 'WS_EXECUTE'
 EXPORTING
    PROGRAM       = PROG
    COMMANDLINE   = 'FILE1'
    INFORM        = ' '
 EXCEPTIONS
    FRONTEND_ERROR           = 1
    NO_BATCH                 = 2
    PROG_NOT_FOUND           = 3
    ILLEGAL_OPTION           = 4
    GUI_REFUSE_EXECUTE       = 5
    OTHERS                   = 6.

CASE SY-SUBRC.
  WHEN 1.
    WRITE: / 'FRONTEND ERROR'.
  WHEN 2.
    WRITE: / 'NO BATCH'.
  WHEN 3.
    WRITE: / 'PROGRAM NOT FOUND'.
  WHEN 4.
    WRITE: / 'ILLEGA OPTION'.
  WHEN 5.
    WRITE: / 'GUI REFUSE EXECUTE'.
  WHEN 6.
    WRITE: / 'OTHERS'.
ENDCASE.
ENDIF.

ABAP Tips by: Anshu Kumar

I have a tool in my desktop. Its in D drive. The file created should get stored in the d drive in the mentioned folder. The tool I am using is of exe mode. What parameters do I need to pass in the function module i.e for command line and program. Where should I mention the path of the tool and where (in which parameter) should I mention the input file path and the output file path.

  CALL FUNCTION 'C13Z_FRONTEND_FILENAME_GET'   " File_name
  IMPORTING
    e_filename                 = w_filename.
 IF sy-subrc <> 0.
   MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
           WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
 ENDIF.

* Function to execute the Bar-Code batch file.
 CALL FUNCTION 'WS_EXECUTE'
   EXPORTING
     cd                 = 'C:\'
     program            = 'C:\BARCODE2\BCIL.BAT'
   EXCEPTIONS
     frontend_error     = 1
     no_batch           = 2
     prog_not_found     = 3
     illegal_option     = 4
     gui_refuse_execute = 5
     OTHERS             = 6.

By this function you can take location & name from end user & then use this w_filename to save the file.