No, they are different "animals" with different extensibility models. VS
2005 provides a general extensibility model (EnvDTE.dll) and some extensions
to be used with VC++. You can resources to get started in the section "For
add-in developers" of my web site (below).

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Best regards,
Carlos J. Quintero
MZ-Tools: Productivity add-ins for Visual Studio
You can code, design and document much faster:
http://www.mztools.com
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