OBS Installation & Setup by Infedel
OBS has a ton of features designed for people using it for streaming which is beyond the scope of what I'll cover here. This guide will cover the basics of setting up OBS to record EQ during raids, etc.
File Cropping Software
You'll need to edit the video after OBS, here are two free programs that are easy.
Get OBS from https://obsproject.com/download (direct download: v24.0.3)
The first step is to setup the sources you want OBS to record. You need to set it up to capture the EverQuest window. If you don't have EQ running yet, launch it now.
Click the "+" button at the bottom left of the sources window and choose "Window Capture":
On the window that pops up create a new source (I call it "P99") and click "OK":