# Configuring Cascade CMS to point to a Java installation

> This article describes the necessary steps to point Cascade CMS to a Java installation.

URL: https://www.hannonhill.com/cascadecms/latest/articles/cascade-administration/installation-and-upgrades/system-configuration/java-configuration.html
category: Cascade Administration
article-type: how-to
content-kind: article
release-availability: all
tags: installation
updated: 2026-10-06

## Overview

In order for Cascade CMS to use a particular Java installation, you'll need to make sure that the boot script is updated accordingly. Follow the instructions below that match your O/S (along with the method you use to start Cascade).

## Linux/*nix

1. Edit the *cascade.sh* file.
1. Update the `JRE_HOME` variable at the top of the script and point it to the new Java installation. Ex.: `export JRE_HOME=/usr/java/jdk11.0.7 `

## Windows (service)

1. Open Windows Explorer.
1. Navigate to *tomcat/bin* within the Cascade CMS installation folder.
1. Right-click the *cascadew.exe* file and select **Run as Administrator**
1. Click the **Java** tab.
1. In the **JVM** field, browse to the *jvm.dll* file within the new Java installation (Ex. path: *C:\Program Files\Java\jdk11.0.7\bin\server\jvm.dll*)
1. Click **Apply**/**OK**.
1. Start/Restart the Cascade CMS service.

## Windows (command line)

1. Edit the *cascade.bat* file.` `
1. Update the `JRE_HOME` variable at the top of the script and point it to the new Java installation. Ex.: `set JRE_HOME=C:\Program Files\Java\jdk11.0.7`