That's what Data Management is for. You should never use software like that on a vWii. You shouldn't even be using it on a real Wii unless you have proper brick protection and have no alternatives, which very extremely rare.
The vWii does not have the same software or firmware as a real Wii, and I wouldn't trust the results of such an outdated app on it. If you aren't having any problems, then don't worry about it.