zone crash can be caused by many things. For example, one I know of is that if an npc equips an item with a worn dmg shield, a crash occurs. To figure out the root of the problem, you probably need to run a debug on it. While you're at it, you may as well check out the install guide. So, go to
http://www.eqemulator.net/wiki/wikka...a=DevVSExpress. Isolating the problem can be tough. To use VS's debug, you'll have to open your current source files. Instead of compiling, attach debug process to zone.exe. Then, when it crashes, you *may* be able to isolate the issue.