Re: Saving application data!
The folder "C:\WINDOWS\Application Data" is not actually the correct place to use, however the folder which is known as %AppData% (which actually points to that location on your PC, but not in all cases) or %UserAppData% is recommended.
One way to find those locations is with the SHGetSpecialFolderLocation API, but apparently that is no longer recommended from Vista onwards (but from what I have been told, it will work in Vista). I would assume that the .Net framework provides its own method, and that is probably supported after Vista.
Re: Saving application data!
In VB.Net 2005:
Code:
My.Computer.FileSystem.SpecialDirectories.CurrentUserApplicationData