Your privacy is important to us. This website uses cookies to enhance user experience and to analyze performance and traffic on our website. By using this website, you acknowledge the real-time collection, storage, use, and disclosure of information on your device or provided by you (such as mouse movements and clicks). We may disclose such information about your use of our website with our social media, advertising and analytics partners. Visit our Privacy Policy and California Privacy Disclosure for more information on such sharing.
For many users, this file is a mystery—an invisible key that unlocks premium features. However, when things go wrong (missing licenses, activation failures, or transfer errors), this small XML file becomes the center of attention.
True forever licenses never expire for the version you bought. However, if you are using a very old license (e.g., 2017) on a brand new version (e.g., 2025), you may need to pay an upgrade fee. Check your account page for upgrade eligibility. Error 3: Permission Denied When Saving License.xml Symptom: You try to save the file inside C:\Program Files\LaunchBox but get an access error. launchbox license.xml
Delete the license on the second PC, then re-download it fresh via the Help > Premium > Re-download option. How to Backup Your LaunchBox License.xml (And Why You Must) The number one support ticket on the LaunchBox forums is "I lost my license when my hard drive crashed." For many users, this file is a mystery—an
LaunchBox has become the gold standard for managing massive retro gaming collections. Whether you are using the free version or the premium LaunchBox Premium (or Big Box), your access is governed by a crucial file: license.xml . However, if you are using a very old license (e
Do not install LaunchBox inside C:\Program Files (Windows protects this folder). Move your LaunchBox folder to C:\LaunchBox or your Documents folder. Then paste the license.xml file. Error 4: The License Works on PC #1 but Not on PC #2 Cause: The license file is not tied to hardware, but it is tied to the installation path. If you copy the folder to a different drive letter ( D:\LaunchBox vs E:\LaunchBox ), it sometimes triggers a re-validation.
C:\Users\[YourUsername]\LaunchBox\License.xml