Version 2.8 of PFDAVAdmin can be downloaded here:

http://www.microsoft.com/downloads/details.aspx?familyid=635be792-d8ad-49e3-ada4-e2422c0ab424&displaylang=en

It seems to need .NET 1.1 to access the Exchange mailboxes and public folders.  This is best done on an admin machine (not the Exchange server as installing v1.1 might break v2.0 and Exchange itself!).)

Download 1.1 and SP1 here:

http://www.microsoft.com/Downloads/details.aspx?FamilyId=262D25E3-F589-4842-8157-034D1E7CF3A3&displaylang=en
http://www.microsoft.com/Downloads/details.aspx?familyid=A8F5654F-088E-40B2-BBDB-A83353618B38&displaylang=en

Installing .NET on Vista x64 gives a compatibility error (with IIS), although installs okay.  See http://www.mydigitallife.info/2007/12/27/install-microsoft-net-framework-11-on-windows-vista-fix-regsvcsexe-fails-error/ for related (?) details.

Exchange 2003 IMAP4

Certain users cannot login although domain usernames and passwords are correct. Error message:

* NO Logon failure: unknown user name or bad password

Resolution: check user's mailbox name (alias) is the same as their account name.

"The Microsoft Exchange Information Store service terminated with service-specific error 0 (0x0)."

AVG AntiVirus had expired which caused the Exchange AV module to fail:

"Error code -2147467259 returned from virus scanner initialization routine. Virus scanner was not loaded. " (Event ID 9581)

and

"Error 0x80004005 starting the Microsoft Exchange Information Store.

Failed to init VSERVER. " (Event ID 9564)

SOLUTION

Set "HKLM\system\Currentcontrolset\services\MsexchangeIS\Virusscan" to "0" and start service.  Renew AV subscription

After Swing It! migration if required use: legacydn /forcewrite

References:

http://support.microsoft.com/kb/314917

http://www.brienposey.com/kb/database_corruption_4.asp

Steps for my -1019 on 65GB mailbox store.  Took 8 hours.

eseutil /d e:\exchsrvr\mdbdata\priv1.edb /te:\tempdfrg*.edb /fe:\tempdfrg*.stm

This failed after 206 secs which was to be expected

eseutil /p e:\exchsrvr\mdbdata\priv1.edb /te:\temprepair*.edb

eseutil /mh e:\exchsrvr\mdbdata\priv1.edb

isinteg -s server02 -fix -test alltests

An alternative approach might have been to exmerge all mailboxes into a newly created database:

http://support.microsoft.com/kb/q259688/

IE7 installs newer version of psapi.dll.  Stop all Exchange services and remove/rename psapi.dll in \Exchsrvr\bin\. Restart Exchange services.

HKLM\Software\Microsoft\Exchange\ContentFilter
DWORD: ArchiveSCL
Value: 1

This can be updated automatically (by Microsoft Update, WSUS, etc) by adding the following registry key:

HKLM\SOFTWARE\Microsoft\Exchange
DWORD: ContentFilterState
Value: 1

Restart the SMTP service after.

To show security tab at root of ESM:

Regedit HKEY_Current_User\Software\Microsoft\Exchange\ExAdmin
Add DWORD Key: ShowSecurityPage
Value: 1
Restart ESM

To allow access for administrators remove explicit deny.

E2K7 Powershell

Add-MailboxPermission Mailbox -user ServiceAccountMailboxName -accessright fullaccess -inheritanceType all

First create, mail-enable and grant appropriate permissions to the public folder.

To grant a user the Send As permissions for a public folder, follow these steps:

1.	Start Exchange System Manager, and then locate the public folder.
2.	Right-click the public folder, and then click Properties.
3.	Click the Permissions tab, and then click Directory rights.
4.	Add the user who you want to grant Send As permissions to, and then click the user in the Name list.
5.	In the Allow column of the Permissions list, click to select the Send As check box.
6.	Click Apply, and then click OK.
7.	Right-click the public folder that you created, and then click Properties.
8.	Under Exchange Advanced, click to clear the hide from Exchange address lists check box.
9.	Type a name for the alias in the simple display name box.
10.	Click OK.

Then rebuild the OAB and download to clients.

In dsa.msc... Exchange Advanced -> Mailbox Rights

Ensure that SELF has "Full Mailbox Access" and give "Associated External Account" right.  Wait for replication (even on single DC) and run Exmerge.