Technical details: The Refx Nexus 2 plugin likely uses a combination of C++ and other programming languages to create its effects and instruments. The DLL files associated with the plugin contain compiled code that can be executed by the DAW.
Operating system considerations: The 64-bit architecture of modern operating systems offers improved performance, security, and memory management compared to 32-bit systems. However, this architecture also requires software developers to ensure that their applications and plugins are compatible with 64-bit environments.
Official Ways to Get Nexus 2 Running on 64-Bit Windows