If you have a managed plug-inA managed .NET assembly that is created with tools like Visual Studio for use in Unity. More info See in Glossary or a native plug-inA platform-specific native code library that is created outside of Unity for use in Unity. Allows you can access features like OS calls and third-party code libraries that would otherwise not be available to Unity. More info See in Glossa
![Unity - Manual: Import and configure plug-ins](https://cdn-ak-scissors.b.st-hatena.com/image/square/8bc447990ab7b1e1bce589cd9b2ddf8a326ae865/height=288;version=1;width=512/https%3A%2F%2Funity3d.com%2Ffiles%2Fimages%2Fogimg.jpg)