NOTE: This is the required core for all installations of the PhysX SDK. It contains headers, libs, dlls, samples, and documentation. Both x32 and x64 versions are included in the installer. Requires installation of: PhysX_9.09.1112_SystemSoftware.exe or a more recent version of the unified SystemSoftware. These installers can be found in the root "Downloads" directory if not in this directory.