Sometimes, whenever the party gets spread out a bit in under the big top, clients start crashing. Well, it happened to me:
Faulting application name: dndclient.exe, version: 2600.43.6870.4026, time stamp: 0x529d52a6
Faulting module name: EMET.DLL, version: 4.1.0.0, time stamp: 0x527d57e4
Exception code: 0xc0000005
Fault offset: 0x00072527
Faulting process id: 0x1a4c
Faulting application start time: 0x01cef63722a1ee33
Faulting application path: C:\Program Files (x86)\Turbine\DDO Unlimited\dndclient.exe
Faulting module path: C:\Windows\AppPatch\EMET.DLL
Report Id: 4c3e318d-622d-11e3-af03-f46d040f6599
EMET is microsoft stuff, don't worry about that, but it looks like ddo is trying to access the wrong spot of memory