Как запустить ассоциированный с каким-либо приложением файл

Private Declare Function ShellExecute Lib "shell32.dll" Alias _

"ShellExecuteA" (ByVal hwnd As Long, ByVal lpOperation As String, _

ByVal lpFile As String, ByVal lpParameters As String, _

ByVal lpDirectory As String, ByVal nShowCmd As Long) As Long



Private Const SW_SHOW = 5



Private Sub Command1_Click()

ShellExecute Form1.hwnd, "open", "C:\bitmapfile.bmp", 0, 0, SW_SHOW

End Sub