     ShellExecuteEx   GetOpenFileName
(,    ,     WinAPI).

   WinAPI -   (   VCL? ) 
 Vcl      ...   
   Dialogs ;-)  Shellexecute  
 ,   .

   ShellExecuteEx   ShellExecute 
  .     
    (  WaitForSingleObject). 

         
(    ),   
 ShellExecute  WinExec (. ).


KNOWN BUGS:
 -    MS Word  
     (Executor  Word "").
   ,   DDE ...