>Dear Experts
>
>How to run WINWORD.EXE?
>What will be the source codes behind a commandbutton?
>
>Please help

How do you want to run it? As automation, as a separate exe?
ie:
-As automation

local oWord
oWord = createobject('Word.Application')
with oWord
  .Documents.Add
  .Visible = .t.
  .Activate
endwith

-As a separate run

declare long ShellExecute in "shell32.dll" ;
	long hwnd, string lpszOp, ;
	string lpszFile, string lpszParams, ;
    string lpszDir, long nShowCmd
ShellExecute(0,'Open','winword.exe',0,0,1)

Cetin