VB.NET not MENULOAD from Initialize

The MENULOAD at startup does not work and shows ERROR. Already run the TESTE command Works.

Imports Autodesk.AutoCAD.Runtime  
Imports Autodesk.AutoCAD.ApplicationServices   
Imports Autodesk.AutoCAD.Interop   
Imports Autodesk.AutoCAD.EditorInput   
Imports System  
Namespace APPTESTENAME   
   Public Class Initialization   
       Implements IExtensionApplication   
       Public Sub Initialize() Implements IExtensionApplication.Initialize   
           MsgBox("START OK")   
           Try
                  Dim acDoc As Document = Application.DocumentManager.MdiActiveDocument   
               Dim LINHA As String   
               LINHA = "(IF (NOT (MENUGROUP ""TOPOCAD2000"")) (PROGN(COMMAND ""_MENULOAD"" ""TOPOCAD2000"")(MENUCMD ""P15=+TOPOCAD2000.POP1""))(ALERT ""\nMENU ALREADY LOADED"") ) "
                 acDoc.SendStringToExecute(LINHA, True, False, False)
             Catch
                 MsgBox("ERRO")
             End Try
         End Sub
         Public Sub Terminate() Implements IExtensionApplication.Terminate
         End Sub
     End Class
     Public Class COMANDOS
         <CommandMethod("TESTE")> _
         Public Sub Teste()
             Dim acDoc As Document = Application.DocumentManager.MdiActiveDocument
             Dim LINHA As String
             LINHA = "(IF (NOT (MENUGROUP ""TOPOCAD2000"")) (PROGN(COMMAND ""_MENULOAD"" ""TOPOCAD2000"")(MENUCMD ""P15=+TOPOCAD2000.POP1""))(ALERT ""\nMENU ALREADY LOADED"") ) "
             acDoc.SendStringToExecute(LINHA, True, False, False)
         End Sub
     End Class
 End Namespace