A: RealHack 3.5 is specifically designed for SolidWorks 2010-2013 and may not be compatible with other versions.
Run the RealHack 3.5 patch, following the on-screen instructions to complete the installation. RealHack 3.5 to enable RealView in SolidWorks 2010 - 2013 74
A: RealHack 3.5 is designed to have a minimal impact on performance, but users may experience variations depending on their hardware configuration. A: RealHack 3