modified Ionic.Zip.dll to show a messagebox with the zip's password (efx_1_00.dat) ( http://www.java2s.com/Tutorial/CSharp/0520__Windows/InvokeMessageBoxinDll.htm )
(zip/dat)'s password: fDmnZwm2H3mtL8KX
efx_1_00.dat holds effects files for the zoom ms50g (firmware v3.0)