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- Ensure you have the latest version of Java at https://www.java.com/en/download/
- Go to http://openrocket.info/ and hit "Download" at the top of the page
- Move the .jar to where you want the program to exist - like the desktop. OpenRocket requires no installation to work.
If the above process does not work, you can also install OpenRocket using an installer (Windows only).
- Download "OpenRocket-15.03-installer.exe" from the Drive.
- Run the installer to install the program.