# Start as a Java Agent

Usually Arthas dynamic attach the applications on the fly, but from version `3.2.0` onwards, Arthas supports starting directly as a java agent.

For example, download the full arthas zip package, decompress it and start it by specifying `arthas-agent.jar` with the parameter `-javaagent`.

```
java -javaagent:/tmp/test/arthas-agent.jar -jar math-game.jar
```

The default configuration is in the `arthas.properties` file in the decompression directory. Reference: [Arthas Properties](arthas-properties.md)

Reference: https://docs.oracle.com/javase/8/docs/api/java/lang/instrument/package-summary.html