L2.ini Editor
Toggle UseWindowFrame or adjust StartupResolution beyond what the in-game options allow.
Below is a structured blog post detailing why you need an L2.ini editor and how to use it safely. Unlocking Your Client: The Ultimate Guide to L2.ini Editors l2.ini editor
A command-line utility for those who prefer a "raw" approach. It is highly reliable for older chronicles like Interlude and C4. l2.ini editor