Microsoft InstallShield Error: “Setup failed to launch Installation engine: Calss not Registered”.

Launch Windows Explorer by pressing Windows Key + E on your keyboard or select Start > Run and type explorer.
Browse to C:\Program Files \Common Files\InstallShield\engine.
Right-click the highlighted engine directory and select Delete.
Install the latest version of the iKernel engine.
1. Download iKernel engine update and save it to your Desktop.
2. Double-click on ikernelupdate.exe to install.