I tried loading this up, as I've never used it and this thread got me interested in seeing what it's all about. After 3 crashes I gave up.
First, I ran the DSurface.exe, then loaded the plugin in game. Nothing happened, so I typed /radar and crashed instantly. Then, I opened EQ again, got in game and the radar was showing up. Cool. I took 5 steps forward and crashed again. Loaded EQ one more time, crashed after taking just a few steps again.