Debug Assistant is a Visual Studio package designed to help programmers and anaylysts in debugging, profiling, code analyzing and testing processes. Debug Assistant does this by recording program execution and presenting a program execution flow. User can then replay what just happened in the source code. This allows users to find problem spot in their code. Debug Assistant can also be used to find performance bottlenecks. Especially for programmers who are new a project, or large code base project where it is hard to correspond program execution to the code. Debug Assist can narrow your search for defects in the code, or just want to analyze program logic. For testing, Debug Assistant is also a tool for code coverage. You can do all these without changing your source code or project settings.