Microsoft KB Archive/326393

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

Article ID: 326393

Article Last Modified on 2/28/2007

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APPLIES TO


 * Microsoft Exchange 2000 Server Standard Edition
 * Microsoft Exchange 2000 Enterprise Server

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This article was previously published under Q326393





SYMPTOMS
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+0x106 10deeeb0 67206e70 ntdll!RtlpExtendHeap+0x72 10deef5c 6fff1921 ntdll!RtlAllocateHeap+0x253 10deef80 6fff1383 exchmem!MpHeapAlloc+0x101 10deef90 0042c4db exchmem!ExchMHeapAlloc+0x13 10deefb0 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+0x28 10defb44 77e561d6 rpcrt4!NdrCallServerManager+0x15 10defe08 77e55f3e rpcrt4!NdrStubCall+0x292 10defe20 77e113a4 rpcrt4!NdrServerCall+0x19 10defe5c 77e111be rpcrt4!DispatchToStubInC+0x33 10defeb0 77e11403 rpcrt4!RPC_INTERFACE::DispatchToStubWorker+0xb0



CAUSE
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.



RESOLUTION
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



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

Additional query words: kbExchange2000preSP4mdbFix kbExchange2000preSP4marchbarFix

Keywords: kbbug kbfix kbexchange2000presp3fix kbqfe kbexchange2000sp3fix kbexchange2000presp4fix kbhotfixserver KB326393

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