You can install cat sis software following next steps.

1.Unzip iso,find SIS file,install setup.exe
2.Load iszwith virtual drive (Alcohol 120%),and install
3.Load isz,and install
4.Load isz,and install
5.Unzip sis_patch 123file,password is 123,Copy and paste the unzipped files to the SIS installation catalog.(Find SIS on desktop,click right key-file location)
6.Double click SIS icon,prompt to activate.
7.Unzip sis_kg 2013calculator,activate it.
8.Open SIS after activation,first it need load license,put yogocat masterin the desktop,find import user on SIS page.Then load.Choose the file yogocat master ,click √,click import,after jumping interface,click login.
9.Put ID and password to log in.ID:yogocatPASSWORD:master,next page choose cat dealer,agree with it,then you can open SIS homepage.