Replacement FM for WS_EXECUTE

Hi Guys,

I need Replacement function Module for "WS_EXECUTE".

EX:

CALL FUNCTION 'WS_EXECUTE'

EXPORTING

<b> INFORM = 'X'</b>

PROGRAM = 'CALC'

COMMANDLINE = 'C:\WINDOWS\SYSTEM32\CALC.EXE'.

write : 'Hi'.

When i run this code , write statement is triggered only after closing CALCULATOR.

But when i use "DSVAS_DOC_WS_EXECUTE_50" Function Module

write Satement is triggred before closing CALCULATOR.

Thanks,

Vickram