Vivacore is an open-source C/C++ code analysis library designed for working with modern C and C++ standards, including improvements over the openc++ library. It supports a variety of code analysis applications such as static and dynamic analysis, code transformation, and syntax highlighting while being optimized for 64-bit systems. Licenses allow free use, modification, and distribution for both commercial and non-commercial purposes, with a focus on integration in the Windows environment, particularly with Visual Studio 2010.