DOCUMENT:Q182715  04-APR-1999  [exchange]
TITLE   :XADM: Store Stops in STORE!COLLECT::EcImportHierChange
PRODUCT :Microsoft Exchange
PROD/VER:5.0,5.5
OPER/SYS:
KEYWORDS:kbusage

======================================================================
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The information in this article applies to:

 - Microsoft Exchange Server, versions 5.0, 5.5 
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SYMPTOMS
========

Microsoft Exchange Server information store stops with a Dr. Watson error in
STORE!COLLECT::EcImportHierChange.

The following is an example of what the failing call stack may look like in the
Drwtsn32.log:

Function Name
 STORE!COLLECT::EcImportHierChange+0x1e1(0x08C785AC, 0x00566467,
 0x00000006, 0x08c944bc,  0x00000008)
 STORE!EcImportHierChgOp+0x87(0x08C94514, 0x08c9450c, 0x0050e25b,
 0x00000006, 0x08c944bc,  0x00000008, 0x08CD9C4C)
 STORE!EcImportHierChange+0xcb(0x08C94514, 0x0040f9a2, 0x00000000,
 0x08c944bc)
 STORE!EcRpc+0xd42(0x00000000, 0x0040EC1E, 0x011efb0c, 0x08c94514)
 STORE!EcDoRpc+0x3e(0x77E11841, 0x06879FC0, 0x08D1593C, 0xbbc4)
 RPCRT4!Invoke+0x28
 RPCRT4!NdrStubCall2+0x745
 RPCRT4!NdrStubCall2+0x716
 RPCRT4!NdrStubCall2+0x47e
 RPCRT4!DispatchToStubInC+0x34
RPCRT4!?DispatchToStubWorker@RPC_INTERFACE@@AAEJPAU_RPC_MESSAGE@@IPAJ@Z+0xb
0
 RPCRT4!?DispatchToStub@RPC_INTERFACE@@QAEJPAU_RPC_MESSAGE@@IPAJ@Z+0x41
RPCRT4!?ReceiveOriginalCall@OSF_SCONNECTION@@QAEHPAUrpcconn_common@@I@Z+0x1
4b
RPCRT4!?DispatchPacket@OSF_SCONNECTION@@QAEHPAUrpcconn_common@@IPAVOSF_ADDR
ESS@@@Z+0x91
 RPCRT4!?ReceiveDirect@OSF_SCONNECTION@@QAEXXZ+0xb6
 RPCRT4!?RecvDirectWrapper@@YGXPAVOSF_SCONNECTION@@@Z+0x9
 RPCRT4!?BaseCachedThreadRoutine@@YGXPAVCACHED_THREAD@@@Z+0x1c
 RPCRT4!?ThreadStartRoutine@@YGJPAVTHREAD@@@Z+0x17
 KERNEL32!BaseThreadStart+0x51

CAUSE
=====

This is caused when a user with a corrupt offline storage file (OST) attempts to
synchronize with the Microsoft Exchange Server information store.


WORKAROUND
==========

To correct this problem, try to determine which user has the corrupt OST file.
Have the user delete the OST file and create a new OST file.

After you apply the fix described in the STATUS section below, the information
store will no longer stop responding when this particular user tries to
synchronize his or her OST file. Instead, the user will receive an error message
that synchronization failed.


STATUS
======

Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 5.0.


A supported fix is now available, but has not been fully regression-tested and
should be applied only to systems experiencing this specific problem. Unless you
are severely impacted by this specific problem, Microsoft recommends that you
wait for the next Service Pack that contains this fix. Contact Microsoft
Technical Support for more information.

This fix has been posted to the following Internet location:

   ftp://ftp.microsoft.com/bussys/exchange/exchange-public/fixes/Eng/Exchg5.0/Post-SP2-STORE/


Microsoft has confirmed this to be a problem in Microsoft Exchange Server version
5.5. This problem has been corrected in the latest U.S. Service Pack for
Microsoft Exchange Server version 5.5. For information about obtaining the
Service Pack, query on the following word in the Microsoft Knowledge Base
(without the spaces):

   S E R V P A C K
======================================================================
Keywords          : kbusage 
Technology        : kbExchangeSearch kbExchange500 kbExchange550 kbZNotKeyword2
Version           : 5.0,5.5
Issue type        : kbbug
Solution Type     : kbfix

=============================================================================

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