IIS app pool crashing with exception 0xc0000005

asp.netiiswindows-server-2008

My app pool keeps crashing when I use a .net provider written by a third party. I'm not sure where to even begin to troubleshoot the issue.

I used Event Viewer to get the following information:

Faulting application name: w3wp.exe, version: 7.5.7601.17514, time stamp: 0x4ce7a5f8
Faulting module name: ntdll.dll, version: 6.1.7601.17514, time stamp: 0x4ce7b96e
Exception code: 0xc0000005
Fault offset: 0x00052d94
Faulting process id: 0x162c
Faulting application start time: 0x01cd8ad4f6ad757b
Faulting application path: c:\windows\system32\inetsrv\w3wp.exe
Faulting module path: C:\windows\SYSTEM32\ntdll.dll
Report Id: 36661c3b-f6c8-11e1-830c-180373c0a6cd  

  <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
  <Provider Name="Application Error" /> 
  <EventID Qualifiers="0">1000</EventID> 
  <Level>2</Level> 
  <Task>100</Task> 
  <Keywords>0x80000000000000</Keywords> 
  <TimeCreated SystemTime="2012-09-04T19:39:17.000000000Z" /> 
  <EventRecordID>26328</EventRecordID> 
  <Channel>Application</Channel> 
  <Computer>my computer</Computer> 
  <Security /> 
  </System>
  <EventData>
  <Data>w3wp.exe</Data> 
  <Data>7.5.7601.17514</Data> 
  <Data>4ce7a5f8</Data> 
  <Data>ntdll.dll</Data> 
  <Data>6.1.7601.17514</Data> 
  <Data>4ce7b96e</Data> 
  <Data>c0000005</Data> 
  <Data>00052d94</Data> 
  <Data>162c</Data> 
  <Data>01cd8ad4f6ad757b</Data> 
  <Data>c:\windows\system32\inetsrv\w3wp.exe</Data> 
  <Data>C:\windows\SYSTEM32\ntdll.dll</Data> 
  <Data>36661c3b-f6c8-11e1-830c-180373c0a6cd</Data> 
  </EventData>
  </Event>

Best Answer

Kindly check the account under which worker process w3wp.exe is running have read/write permissions of your hosting folder.(E.g. Inetpub)

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