How to add an existing folder on a solution level in vs 2008?

I renamed a folder using Tortoise SVN which creates a new folder.

Now I want to add it again but th开发者_JS百科ere is no add existing folder option and I can't show all files at the solution level.

How can it be done?

EDIT: I know that solution folders are virtual, I would like to import an existing hierachy.

Folders on the solution level correspond to projects. So just add the existing project file (.csproj, .vbproj, .vcproj) to your solution from the new folder (if you have a reference to the project at the old location in your solution, remove it first).

However, if you are talking about a subfolder within a project, quickest way to get it right is to open the project file with a simple text editor like notepad, find the old folder name within there and rename it manually.

It cant be done. Solution folder are 'virtual'. Solution files are just links to the actual file location.