Here's a blog (with links to more articles) about how VC2010 is implementing features like this, if you're interested:<br><br><a href="http://blogs.msdn.com/vcblog/archive/2009/05/27/rebuilding-intellisense.aspx">http://blogs.msdn.com/vcblog/archive/2009/05/27/rebuilding-intellisense.aspx</a><br>