Access Violation Exception

Hello,

I am running a CAD (Computer Aided Dispatch) application which is "crashing" (I use that term loosely as I am not convinced that it is the CAD application which is causing the problem) randomly. Not only is it random but it is not directly tied to any particular action within the program itself.

I am trying to understand what to do with the following:

In CAD__PID__5960__Date__02_23_2015__Time_10_06_52PM__396__Second_Chance_Exception_C0000005.dmp the assembly instruction at mshtml!CCollectionCache::EnsureAry+c9 in C:\Windows\SysWOW64\mshtml.dll from Microsoft Corporation has caused an access violation exception (0xC0000005) when trying to read from memory location 0x00000000 on thread 0

The recommendation is the following:

Please follow up with the vendor Microsoft Corporation for C:\Windows\SysWOW64\mshtml.dll

More information:

Thread report

Thread 0 - System ID 5516
Entry point CAD+616bec
Create time 2015/02/23 18:51:28
Time spent in user mode 0 Days 00:03:58.338
Time spent in kernel mode 0 Days 00:01:51.525




This thread is processing an inbound RPC call over LRPC to the OLE75D70CD25C294C41A35770FB2D88 endpoint.



.NET Call Stack



Function
[[NDirectMethodFrameStandalone] (._WinMainCRTStartup)] ._WinMainCRTStartup()
[[GCFrame]]


Full Call Stack



Function
mshtml!CCollectionCache::EnsureAry+c9
mshtml!CCollectionCache::GetLength+11
mshtml!CAreasCollection::get_length+18
rpcrt4!Invoke+2a
rpcrt4!NdrStubCall2+2ea
ole32!CStdStubBuffer_Invoke+3c
oleaut32!CUnivStubWrapper::Invoke+cb
ole32!SyncStubInvoke+3c
ole32!StubInvoke+b9
ole32!CCtxComChnl::ContextInvoke+fa
ole32!MTAInvoke+1a
ole32!STAInvoke+46
ole32!AppInvoke+ab
ole32!ComInvokeWithLockAndIPID+372
ole32!ComInvoke+c5
ole32!ThreadDispatch+23
ole32!ThreadWndProc+161
user32!InternalCallWinProc+23
user32!UserCallWinProcCheckWow+109
user32!DispatchMessageWorker+3bc
user32!DispatchMessageA+f
mfc90!AfxInternalPumpMessage+40
mfc90!CWinThread::Run+5b
mfc90!AfxWinMain+6a
CAD+6130ce
mscorwks!CallDescrWorker+33
[[NDirectMethodFrameStandalone] (<Module>._WinMainCRTStartup)] <Module>._WinMainCRTStartup()
mscorwks!CallDescrWorkerWithHandler+a3
mscorwks!MethodDesc::CallDescr+19c
mscorwks!MethodDesc::CallTargetWorker+1f
mscorwks!MethodDescCallSite::CallWithValueTypes+1a
mscorwks!ClassLoader::RunMain+20d
[[GCFrame]]
mscorwks!Assembly::ExecuteMainMethod+a6
mscorwks!SystemDomain::ExecuteMainMethod+45e
mscorwks!ExecuteEXE+59
mscorwks!_CorExeMain+15c
mscoreei!_CorExeMain+10a
mscoree!ShellShim__CorExeMain+99
mscoree!_CorExeMain_Exported+8
ntdll!__RtlUserThreadStart+70
ntdll!_RtlUserThreadStart+1b


Inbound RPC Call:

Protocol Sequence ncalrpc
Endpoint OLE75D70CD25C294C41A35770FB2D88
Source Process ID 6832
Source Thread ID 4660


Any help would be greatly appreciated.

Thank you

 

Hi TonyT,

CAD app is built by Bell, we built the CAD app! and yes it's Win 7 Compat. I am trying to help development with this issue. They are looking at our code, while I am trying to track down info on these error messages, environmental issues etc in hopes of finding a solution. I have found lots of articles referring to not being able to read from memory location 0x00000000. I am not an expert, but while researching I came across your web site and thought maybe someone here may be able to point me in the right direction!
Any recommendations wrt to IE? simple reinstall perhaps. I will have a stroll down the IE path and see where that leads!

Thanks