Explorer.exe crashes on new 2008R2 terminalserver

Hi,

every now and then the explorer.exe process crashes.

Dump from eventlog

Faulting application name: Explorer.EXE, version: 6.1.7600.16450, time stamp: 0x4aebab8d
Faulting module name: ntdll.dll, version: 6.1.7600.16385, time stamp: 0x4a5be02b
Exception code: 0xc0000005
Fault offset: 0x000000000003202d
Faulting process id: 0x4c64
Faulting application start time: 0x01cae5cfb2a7f894
Faulting application path: C:\Windows\Explorer.EXE
Faulting module path: C:\Windows\SYSTEM32\ntdll.dll
Report Id: 0f92301d-51c6-11df-abc3-18a905401c2e

event id: 1000, sorce application error.

Regards

Jon
Jon_HoltanAsked:
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PlusITCommented:
What is the outpot of sfc /scannow ?
Jon_HoltanAuthor Commented:
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\administrator.KRUSE>sfc /scannow

Beginning system scan.  This process will take some time.

Beginning verification phase of system scan.
Verification 100% complete.

Windows Resource Protection did not find any integrity violations.

C:\Users\administrator.KRUSE>
PlusITCommented:
do you have another system with same updates where you can compare the file C:\Windows\SYSTEM32\ntdll.dll ?
Jon_HoltanAuthor Commented:
Hi,

I've think we have found the cause. Microsoft analysed the crash dump an identified an 3rd party outlook plugin. Superoffice maillink addin.
After we removed it then problem went away.
Thanks everybody.

Jon

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Windows Server 2008

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