Try

#DEFINE SW_HIDE             0
lcDir = "c:\qasim\"
lcCmd = lcDir + "sqlldr"
lcPrm = "download/ddd@itdd load_mst.ctl"
DECLARE Long ShellExecute IN "Shell32.dll" ;
	Long hwnd, String lpVerb, String lpFile, ;
	String lpParameters, String lpDirectory, Long nShowCmd
ShellExecute(0, "", lcCmd, lcPrm, lcDir, SW_HIDE)

> i need help to run this code via vfp command button
>
> run/n cmd
>c:
>cd\qasim
>sqlldr download/ddd@itdd load_mst.ctl
>
>or as
>c:\qasim>sqlldr download/ddd@itdd load_mst.ctl
>
>
>
>thanks