这样也行:
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()
ShellExecute Me.hwnd, "open", "http:\\www.csdn.net", vbNullString, vbNullString, 3
End Sub
'引用Microsoft Internet Controls
Private Sub Command1_Click()
Dim myie As New InternetExplorer
myie.Visible = True
myie.Navigate "http:\\www.csdn.net"
Set myie = Nothing
End Sub