Visual Basic - Como llamo a la calculadora de windows desde VB

Hola, Si alguien puede ayudarme se lo agradecere muchisimo. Mi duda es sobre como puedo llamar la funcion de Calculadora de Windows desde visual. Gracias!!!

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 sub command1_click
dim retval as long

retval= ShellExecute 0, "Open","C:\Windows\calc.exe", vbNullString, vbNullString,SW_SHOWNORMAL

end sub

sino busca en la ayuda de visualbasic: shellexecute

suerte!!!

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 sub command1_click
dim retval as long

retval= ShellExecute 0, "Open","C:\Windows\calc.exe", vbNullString, vbNullString,SW_SHOWNORMAL

end sub

sino busca en la ayuda de visualbasic: shellexecute

suerte!!!