I suppose you are using DTE.CommandBars.Item("View"), which retrieves a
different command bar.
See the MSDN Knowledge Base Community Solution article that I have just
written:
HOWTO: Getting the "View" command bar of Visual Studio .NET from an add-in
http://support.microsoft.com/default.aspx?scid=kb;en-us;555186

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Carlos J. Quintero (Visual Developer - .NET MVP)
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> how can i create an item in the menu 'View', in the menu 'Tools' it works