Recreating Exsisting Application and Renaming Name Spaces

Question

Givin the following I have a project that consists of 4 solutions First. AspNetControl.dll Second. AspNetCompontents.dll Third. AspNetDataproviders.dll Forth. AspNetForums.dll which is the main web application. Given I want to replace all the prefixes from AspNet to Web, so all the namespaces will have instead of AspNet it will be WebControl.dll WebComponents.dll Wed.Dataproviders.dll Web.Forums.dll How do I go about setting up a project for this type of senerio also knowing that I can do a find and replace in Visual Studio for all the files, from AspNet to Web that is the proper namespace that I want. I have a problem compiling because of the old namespaces, how should I go about changing that? So that the project can compile with the correct namespace.