TurboFTP stores user-specific data like data file of the FTP Site Address
Book (addrbk.dat) in the user's profile directory. For example in
Windows NT system, a user profile directory looks like C:\Documents and
Settings\Your UserID\Application Data\TurboFTP. When a user runs
TurboFTP for the first time, the default addrbk.dat will be copied
to the user's profile directory.