E00.log was missing, and Mail store can't be mount.

Thanks for all your response.

Hi yasan,
What is " the temporary location for the log files "?
I did check the "Last Backup Set" when I restored my Difference backup set.
BTW, I used the Windows default Backup Tools to backup "Micrsoft Information Store" and the folder of MDBDATA excluding edb and stm files. The store backuped at 10/14/2004 9:00PM and those Log files backuped on 10/15/2004 2:00AM. Does that cause a dismatch between DB and Log files?
Do you think that the Windows default Backup Tools can be used to backup Exchange? Or, in the future, I need change to another tools, like Veritas?

Hi Admin,
Actually, I knew the issue about anti-virus scanning exchange folders will cause problem, so I did exclude all those folders follow this document :" Preventing Symantec AntiVirus Corporate Edition from scanning the Microsoft Exchange directory structure ". And if the missing caused by this issue, I should be able to find out the E00.log in the Qurantin folder, right? But I didn't.

Any others can cause this missing as you knew?

Hi yasan,
I see what is "the temporary location for the log files". I typed "c:\" when I restored the last backup set. Now I can see a folder named First Storage Group which includes some log files. Do you mean this folder? Let me try.

I got a error here:
C:\Program Files\Exchsrvr\MDBDATA>"C:\Program Files\Exchsrvr\BIN\eseutil" /cc "c
:\First Storage Group"

Microsoft(R) Exchange Server(TM) Database Utilities
Version 6.0
Copyright (C) Microsoft Corporation 1991-2000.  All Rights Reserved.

Using restore environment
   Restore log file: c:\First Storage Group

Operation terminated with error -939586631 (Unknown Error, Unknown Error) after
0.109 seconds.

What's next?

I tried use "C:\", same error.

Oh, Admin is right. I found the E00.log in the Quarantine folder! I must did that excluding setting on all the other Exchange servers, but forgot this one! My god!

So, yasan, do you think I can restore the E00.log from Quarantine and the whole folder of EDBDATA from a backup I made today after Exchange crashed?

I tried it, but got a error when I run eseutil:
C:\Program Files\Exchsrvr\MDBDATA>"C:\Program Files\Exchsrvr\BIN\eseutil" /d pri
v1.edb

Microsoft(R) Exchange Server(TM) Database Utilities
Version 6.0
Copyright (C) Microsoft Corporation 1991-2000.  All Rights Reserved.

Initiating DEFRAGMENTATION mode...
            Database: priv1.edb
      Streaming File: priv1.STM
      Temp. Database: TEMPDFRG744.EDB
Temp. Streaming File: TEMPDFRG744.STM


Operation terminated with error -550 (JET_errDatabaseDirtyShutdown, Database was
 not shutdown cleanly. Recovery must first be run to properly complete database
operations for the previous shutdown.) after 10.735 seconds.

I will try to do some more research for the DirtyShutdown before I get help from you.

Thanks for you guys, I fixed this problem. I put all the steps as following for the pepole who has the same problem.

SYMPTOMS
This morning, our Exchange Server 2000 (on Windows Server 2000 with up-to-date SP) stopped.

When I tried to mount a mailbox or a public folder store, you may receive the following error message:
An internal processing error has occurred. Try restarting the Exchange System Manager or the Microsoft Exchange Information Store service, or both.

ID no: c1041724
Exchange System Manager

Later I found the E00.log was missing and here are some Event Logs:
EventID:9175
The MAPI call 'OpenMsgStore' failed with the following error:
The Microsoft Exchange Server computer is not available.  Either there are network problems or the Microsoft Exchange Server computer is down for maintenance.
The MAPI provider failed.
Microsoft Exchange Server Information Store
ID no: 8004011d-0526-00000000

EventID: 9518
Error Current log file missing starting Storage Group /DC=COM/DC=PROSPER-USA/CN=CONFIGURATION/CN=SERVICES/CN=MICROSOFT EXCHANGE/CN=FIRST ORGANIZATION/CN=ADMINISTRATIVE GROUPS/CN=FIRST ADMINISTRATIVE GROUP/CN=SERVERS/CN=SERVER/CN=INFORMATIONSTORE/CN=FIRST STORAGE GROUP on the Microsoft Exchange Information Store.
Storage Group - Initialization of Jet failed.


Caused by:
This issue may occur if the E00.log file is missing or is no longer present in the Exchsrvr\Mdbdata folder or in the log file folder. The log file may be missing or may not be present in the Exchsrvr\Mdbdata folder if a file-based virus scanner moves the log file to the Quarantine folder.

File-level antivirus scanners sometimes locate data in an Exchange 2000 log file that matches a known virus signature. In this case, the virus scanner may determine that the log file contains a virus and move it to the Quarantine folder.

Refer to:
<a id="'KB" href="http://support.microsoft.com/default.aspx?scid=KB;EN-">Recommendations for troubleshooting an Exchange Server computer with antivirus software installed</a>

<a href="http://support.microsoft.com/?id=819553">XADM: "An Internal Processing Error Has Occurred" Error Message When You Try to Mount a Database</a>

RESOLUTION
To resolve this issue, exclude the installable file system (IFS) drive (M drive) of the Exchange 2000 computer and other files that are related to Exchange 2000 files and folders from scheduled virus scans and real-time scanning operations.

<a href="http://service1.symantec.com/SUPPORT/ent-security.nsf/docid/2002090916040948">Preventing Symantec AntiVirus Corporate Edition 8.x from scanning the Microsoft Exchange directory structure </a>

Move the E00.log file from the Quarantine folder to the Exchsrvr\Mdbdata folder or log file folder, and then mount the database.

If you got error when you try to mount store in ESM(Exchange System Manager)
---------
The database files in this store are inconsistent.
ID no: c1041739
Exchange System Manager
----------
Do following steps:
C:\Program Files\Exchsrvr\MDBDATA>"C:\Program Files\Exchsrvr\BIN\eseutil" /p priv
1.edb
C:\Program Files\Exchsrvr\MDBDATA>"C:\Program Files\Exchsrvr\BIN\eseutil" /d priv
1.edb
C:\Program Files\Exchsrvr\MDBDATA>"C:\Program Files\Exchsrvr\BIN\eseutil" /p pub
1.edb
C:\Program Files\Exchsrvr\MDBDATA>"C:\Program Files\Exchsrvr\BIN\eseutil" /d pub
1.edb

Refer to:
<a href="https://www.experts-exchange.com/questions/20655145/Restoring-Exchange-2000-database-with-no-transaction-log-files-and-no-backup.html">Solution Title: Restoring Exchange 2000 database with no transaction log files and no backup</a>


Other Refers:
1. I have the other problem during the trouble shooting is Symantec System Center 5.0 running very slow and casue 90% CPU process, so I have to manully uninstall it and Symantec AntiVirus Corporate Edition 8.1 server, detail refer to:
<a href="http://service1.symantec.com/SUPPORT/ent-security.nsf/c9b1ac1936fbf63488256e77006521df/99abfdd5903c38c288256e6e007ae25b?OpenDocument&src=bar_sch_nam">Manually uninstalling Symantec AntiVirus Corporate Edition 9.0 server from Windows NT/2000/XP/2003 </a>

<a href="http://service1.symantec.com/SUPPORT/ent-security.nsf/d04e6f2f2dfad5de88256c910079502c/c2b1c1b565760a9188256caf005d856d?OpenDocument&src=bar_sch_nam">How to manually uninstall Symantec System Center 5.0</a>
2. here are some tips on https://www.experts-exchange.com were very help for me:
<a href="https://www.experts-exchange.com/questions/20943951/Mailbox-Store-Problem.html">Mailbox Store Problem</a>

<a href="https://www.experts-exchange.com/questions/20723964/priv1-edb-recovery.html">priv1.edb recovery</a>


Notes: After all steps, I can mount the exchange information store. But the problem is all the newer transaction logs after the E00.log was quarantined can not be included into the database remounted. That's mean I lost all emails in the trouble shooting period. Please note it...

Finally, I have to say thank you to  vasanthgnb, Exchange_Admin  and  Maharajkp.