XADM: Access Violation in Information Store When You Log On to a Mailbox by Using an Account Name That Contains Double-Byte Characters

This article was previously published under Q326393
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When you log on to a mailbox by using an account name that contains characters from a double-byte character set (DBCS), the Microsoft Exchange Information Store service may stop responding and generate an access violation (AV) error. The call stack may appear similar to the following:
ChildEBP RetAddr  10deee74 67205d44 ntdll!RtlpFindAndCommitPages+0x10610deeeb0 67206e70 ntdll!RtlpExtendHeap+0x7210deef5c 6fff1921 ntdll!RtlAllocateHeap+0x25310deef80 6fff1383 exchmem!MpHeapAlloc+0x10110deef90 0042c4db exchmem!ExchMHeapAlloc+0x1310deefb0 0042c4a5 store!EcCompressDN+0x28 292]10deefcc 0042cb76 store!JTAB_BASE::EcMakeDNKey+0x37 10deefe8 0042c631 store!EcSeekMailbox+0x48 6549]10def020 004b576c store!LOGON::EcLookupFidRoot+0x6f 10def6b4 004b699b store!LOGON::EcConfig+0x97c 10def790 004c55f8 store!EcDoPrivateLogonOp+0x478 10defa14 0040e941 store!EcLogon+0x245 10defaf4 0040e614 store!EcRpc+0x2cf 10defb08 77e11dc7 store!EcDoRpc+0x41 10defb28 77e56205 rpcrt4!Invoke+0x2810defb44 77e561d6 rpcrt4!NdrCallServerManager+0x1510defe08 77e55f3e rpcrt4!NdrStubCall+0x29210defe20 77e113a4 rpcrt4!NdrServerCall+0x1910defe5c 77e111be rpcrt4!DispatchToStubInC+0x3310defeb0 77e11403 rpcrt4!RPC_INTERFACE::DispatchToStubWorker+0xb0					
This problem may occur if all the following conditions exist:
  • The user account name contains at least one DBCS character.
  • Exchange 2000 Server is on a computer that is running the English version of Microsoft Windows 2000 Server.
  • The computer's default locale is set to a DBCS language and the computer uses a language pack.
To resolve this problem, install the Microsoft Exchange 2000 Server Post-Service Pack 3 Messaging Database patch.

For additional information about how to obtain this update, click the article number below to view the article in the Microsoft Knowledge Base:
329882 XGEN: Post-Exchange 2000 Server Service Pack 3 Messaging Database Fixes That Are Available

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
kbExchange2000preSP4mdbFix kbExchange2000preSP4marchbarFix

Article ID: 326393 - Last Review: 10/26/2013 17:21:59 - Revision: 4.3

Microsoft Exchange 2000 Server Standard Edition, Microsoft Exchange 2000 Enterprise Server

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