Application throws error(Faulting application name: w3wp.exe, version: 7.5.7601.17514, time stamp: 0x4ce7afa2)

Question

Hi,

I am getting below error in my application.

I have used recursive function in code. application is unable to error catch exception.

currently i am using windows server 2008 r2 and IIS 7.5

And also same code when i run in windows server 2003 and IIS 6.0 then it's working fine.

please suggest me there are any changes in memory management for W3WP.EXE process in case windows server 2008 r2.

And also please suggest me any hot fix to fix this problem.

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Log Name:      Application
Source:        Application Error
Date:          11/29/2012 2:22:44 AM
Event ID:      1000
Task Category: (100)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      sdsad
Description:
Faulting application name: w3wp.exe, version: 7.5.7601.17514, time stamp: 0x4ce7afa2
Faulting module name: nlssorting.dll, version: 4.0.30319.296, time stamp: 0x504835c7
Exception code: 0xc00000fd
Fault offset: 0x0000000000006fd0
Faulting process id: 0x12c8
Faulting application start time: 0x01cdce12dc4365bb
Faulting application path: c:\windows\system32\inetsrv\w3wp.exe
Faulting module path: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\nlssorting.dll
Report Id: 54b20d2f-3a06-11e2-b123-005056bb04e3
Event Xml:
<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="2012-11-29T09:22:44.000000000Z" />
    <EventRecordID>18089</EventRecordID>
    <Channel>Application</Channel>
    <Computer>fgdgs</Computer>
    <Security />
  </System>
  <EventData>
    <Data>w3wp.exe</Data>
    <Data>7.5.7601.17514</Data>
    <Data>4ce7afa2</Data>
    <Data>nlssorting.dll</Data>
    <Data>4.0.30319.296</Data>
    <Data>504835c7</Data>
    <Data>c00000fd</Data>
    <Data>0000000000006fd0</Data>
    <Data>12c8</Data>
    <Data>01cdce12dc4365bb</Data>
    <Data>c:\windows\system32\inetsrv\w3wp.exe</Data>
    <Data>C:\Windows\Microsoft.NET\Framework64\v4.0.30319\nlssorting.dll</Data>
    <Data>54b20d2f-3a06-11e2-b123-005056bb04e3</Data>
  </EventData>
</Event>