Как с VB запустить браузер?

Public Const HKEY_CLASSES_ROOT = &H80000000
 
Public Const ERROR_SUCCESS = 0&
Public Const REG_SZ = 1
 
 
Public Const reg_SHELL_OPEN = 'shellopen'
Public Const reg_SHELL_OPEN_COMMAND = reg_SHELL_OPEN & 'command'
 
Public Declare Function RegOpenKey Lib 'advapi32.dll' Alias 'RegOpenKeyA' (ByVal hKey As Long, ByVal lpSubKey As String, phkResult As Long) As Long
Public Declare Function OSRegCloseKey Lib 'advapi32' Alias 'RegCloseKey' (ByVal hKey As Long) As Long
Public Declare Function OSRegQueryValueEx Lib 'advapi32' Alias 'RegQueryValueExA' (ByVal hKey As Long, ByVal lpszValueName As String, ByVal dwReserved As Long, lpdwType As Long, lpbData As Any, cbData As Long) As Long
 
 
''=================================================================================================
 
Public Function StripTerminator(ByVal strString As String, Optional CharCod As Variant) As String
Dim intZeroPos As Integer
Dim sCC As String * 1
sCC = Chr$(0)
 
If Not IsMissing(CharCod) Then sCC = CharCod
    intZeroPos = InStr(strString, sCC)
    If intZeroPos > 0 Then
        StripTerminator = Left$(strString, intZeroPos - 1)
    Else
        StripTerminator = strString
    End If
End Function
 
Function RegCloseKey(ByVal hKey As Long) As Boolean
Dim lResult As Long
    On Error GoTo 0
    lResult = OSRegCloseKey(hKey)
    RegCloseKey = (lResult = ERROR_SUCCESS)
End Function
 
 
Function RegQueryStringValue(ByVal hKey As Long, ByVal strValueName As String, strData As String) As Boolean
Dim lResult As Long
Dim lValueType As Long
Dim strBuf As String
Dim lDataBufSize As Long
    RegQueryStringValue = False
    On Error GoTo 0
    lResult = OSRegQueryValueEx(hKey, strValueName, 0&, lValueType, ByVal 0&, lDataBufSize)
    If lResult = ERROR_SUCCESS Then
        If lValueType = REG_SZ Then
            strBuf = String(lDataBufSize, ' ')
            lResult = OSRegQueryValueEx(hKey, strValueName, 0&, 0&, ByVal strBuf, lDataBufSize)
            If lResult = ERROR_SUCCESS Then
                RegQueryStringValue = True
                strData = StripTerminator(strBuf)
            End If
        End If
    End If
End Function
 
 
''====================================================================================
Public Function RegQueryShellOpenCommandByType(ByVal strFileType As String) As String
Dim hRegKey As Long
Dim TMPstr As String
Dim lTV As Variant
RegQueryShellOpenCommandByType = ''
On Error GoTo 0
    If RegOpenKey(HKEY_CLASSES_ROOT, strFileType, hRegKey) Then Exit Function
    TMPstr = ''
    If RegQueryStringValue(hRegKey, '', TMPstr) Then
        lTV = RegCloseKey(hRegKey)
        If RegOpenKey(HKEY_CLASSES_ROOT, strFileType & reg_SHELL_OPEN_COMMAND, hRegKey) Then Exit Function
        TMPstr = ''
        RegQueryStringValue(hRegKey, '', TMPstr)
        RegQueryShellOpenCommandByType = TMPstr
    End If
    If hRegKey <> 0 Then lTV = RegCloseKey(hRegKey)
End Function
 
 
''========================================================
''Пример использования
''Dim strCMD$
 
''    strCMD$ = RegQueryShellOpenCommandByType('http')
''    If strCMD$ <> '' Then ''- Полный путь к броузеру
 
''    strCMD$ = RegQueryShellOpenCommandByType('mailto')
''    If strCMD$ <> '' Then ''- Полный путь к мылу
 
''  и так далее....