Internet connection

Whats wrong? I have checked the Internet options in ActiveX Comp. and I use this code:

Code:

---

Public Explorer As SHDocVw.InternetExplorer
 On Error GoTo errorhandler
    Set Explorer = New SHDocVw.InternetExplorer
    Explorer.Visible = True
    Explorer.Navigate "http://www.microsoft.com/"
    Exit Sub
errorhandler:
    MsgBox "Error displaying file", , Err.Description

---

Does it matter, that the code is impelmeted in an MDI Form?