Double click on the file and get WinZip running. When WinZip starts up there should be three files, Ki Breathing Assistant (zipped), setup.exe and Setup.lst.
That's what I did, but for some reason the file won't even open to display the three files in the winzip window. If I double click the file from windows explorer, winzip will start up, then give a message: Not a valid archive. Sigh . . . I hate this machine!