'1 command button on a form

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()
On Error Resume Next
Call ShellExecute(0&, vbNullString, "H:\Program Files\Internet Explorer\IEXPLORE.EXE", vbNullString, vbNullString, vbNormalFocus)
End Sub

Notes:

You will have to change the path for Internet Explorer

1 command button on a form

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()
On Error Resume Next
Call ShellExecute(0&, vbNullString, "H:\Program Files\Internet Explorer\IEXPLORE.EXE", vbNullString, vbNullString, vbNormalFocus)
End Sub

Notes:

You will have to change the path for Internet Explorer