# Windows release

This client uses JavaFX (`JFXPanel`). Java 11 and later do not include JavaFX, so double-clicking the JAR with the system Java runtime can fail with `NoClassDefFoundError: javafx/embed/swing/JFXPanel`.

After building `MesOP040.jar` in IDEA, generate the portable release:

```powershell
.\build-release.ps1
```

The generated `release\MesOP040` directory contains a Java 8 runtime with JavaFX. Distribute the entire directory and start the application with `start.bat`. Do not start `MesOP040.jar` directly on the target machine.

If Java 8 is installed in a different location on the build machine:

```powershell
.\build-release.ps1 -Java8Home "C:\path\to\jdk8"
```