Maya uses some component libraries such as Qt, Python, OpenAL, Intel TBB, and Cg. These libraries are installed in the /lib directory under your Maya installation directory.
You may already have these component libraries installed on your system. However, the versions already installed on your system may not be compatible with Maya. For example, Maya requires its own versions of the Qt libraries to run properly. For this reason it is important that you not delete the component libraries installed with Maya.