Оформил: DeeCo
Автор: http://www.swissdelphicenter.ch

 function GetEXEType(FileName: string): string;
 var
   BinaryType: DWORD;
 begin
   if GetBinaryType(PChar(FileName), Binarytype) then
     case BinaryType of
       SCS_32BIT_BINARY: Result := 'Win32 executable';
       SCS_DOS_BINARY: Result   := 'DOS executable';
       SCS_WOW_BINARY: Result   := 'Win16 executable';
       SCS_PIF_BINARY: Result   := 'PIF file';
       SCS_POSIX_BINARY: Result := 'POSIX executable';
       SCS_OS216_BINARY: Result := 'OS/2 16 bit executable'
         else
           Result := 'unknown executable'
     end
   else
     Result := 'File is not an executable';
 end;

 procedure TForm1.Button1Click(Sender: TObject);
 begin
   label1.Caption := GetEXEType('c:\windows\notepad.exe');
 end;


 { 
 Windows NT/2000: Requires Windows NT 3.5 or later. 
 Windows 95/98: Unsupported. 
}