I tried to build a software using Installshield. A software when built with default setting would be a 32-bit software. I need it to be a 64-bit software. I already know I have to set my Template Summary in the General Information view, Summary Information Stream section to x64;1033.

My doubt is,
  1. Is there any other settings I have to change for my purpose?
  2. Could all these procedures be done in a script i.e., a script to generate a 64-bit version?

Please guide me on this. Thanks in advance.