cannot open from source control workspace files (*.dsw). Please use Visual C++ 5.0 or 6.0 to open this workspace from source ...

%0 cannot open from source control workspace files (*.dsw).
Please use Visual C++ 5.0 or 6.0 to open this workspace from source control, then open the project from disk to convert it into a %0 solution.
Alternatively, you can choose to open or add from source control the individual project files (*.dsp) that were part of this workspace.