The most common ESM public folder expansion errors are listed below, followed by a breakout of each with details of the associated possible causes and recommended troubleshooting steps.

• Error ID number: 80040e19
  
• Error ID number: 80070005
  
• Error ID number: 80070057
  
• Error ID number: 80072030
  
• Error ID number: 80090301
  
• Error ID number: c007274c
  
• Error ID number: c1030af0
  
• Error ID number: c1030af2
  
• Error ID number: c1030af3
  
• Error ID number: c1030af4
  
• Error ID number: c1030af6
  
• Error ID number: c1030af7
  
• Error ID number: c1030af8
  
• Error ID number: c0072af9
  
• Error ID number: c1038a21
  
• Error ID number: c0072afc
  
• Error ID number: c0072741
  
• Error ID number: c103b401
  
• Error ID number: c103b404
  
• Error ID number: c103b405
  
• Enter Network Password
  

Error Message

The object is no longer available. Press F5 to refresh the display, and then try again

Possible Causes

• Improper IP address binding in Internet Information Services (IIS).
  
• Host header for the default Web site is incorrect in IIS.
  
• Incorrect path name listed in IIS under the Home Directory tab.
  
• Metabase may be corrupted.
  
• URLScan may be installed on IIS blocking specific extensions or verbs.
  
• Non-working public folder store is selected in ESM.
  
• Invalid folderpathname set for the http public folder in Active Directory® directory service.
  
• Other third-party ISAPI filters installed in IIS.
  
• Public folder hierarchy on the Exchange server is associated with the public folder store on another server.
  

Troubleshooting

• Verify proper IP address, host header, and port in the properties of the Default Web Site. By default, the IP address is set to all unassigned with no host header bound to port 80. Set this back to the default settings for testing purposes. If multiple IP addresses are bound to the network card because of the "All in one" syndrome with running multiple Web sites on an Exchange server, try using the first bound IP address. Add host header if necessary to get around this. Change port if necessary. If this error is occurring on a cluster server, you may need to add a host header for the Exchange cluster virtual name to the Web site to get this working.
  
• Check to make sure that URLScan is not installed on the server. This information can be found by getting the master WWW properties in the Internet Information Services (IIS) Manager and selecting the ISAPI filters tab. If URLScan is listed, the best thing to do to see if URLScan is causing the problem. To see if it is the problem, check the urlscan.log file that is created in the \winnt\system32\inetsrv\urlscan folder. The following is a sample urlscan.log file:
  [08-23-2004 - 14:39:36] Client at 192.168.254.67: URL contains extension '.com', which is disallowed. Request will be rejected. Site Instance='1', Raw URL='/ExAdmin/Admin/domain.com/Public%20Folders/'
[08-23-2004 - 14:56:10] Client at 192.168.251.11: URL contains extension '.com', which is disallowed. Request will be rejected. Site Instance='1', Raw URL='/ExAdmin/Admin/domain.com/Public%20Folders/'
[08-23-2004 - 14:57:02] Client at 192.168.251.11: URL contains extension '.com', which is disallowed. Request will be rejected. Site Instance='1', Raw URL='/ExAdmin/Admin/domain.com/Public%20Folders/NON_IPM_SUBTREE/'
  As you can see, Urlscan is denying the .com extension when expanding the public folders in the ESM. For more information about this problem, see Microsoft Knowledge Base article 328659, "Error 80040E19 when you try to expand public folders in Exchange 2000 Server."
  Additionally, for more information about configuring URLScan on an Exchange server, see Microsoft Knowledge Base article 309508, "IIS lockdown and URLscan configurations in an Exchange environment."
  

  Important:
  After a setting in the urlscan.ini file is changed for use with URLScan, the IISAdmin service must be restarted for the change to take effect. Keep in mind that this will stop the Information Store which will affect Microsoft Office Outlook® and Outlook Web Access clients.

• Connect to another public folder store, if available, to see if the issue persists. To do this, right click on Public Folders, click Connect to, and then select another public folder store.
  
• Check the properties in IIS on the public and exadmin folders to see whether they are pointing to the proper home directory paths. Be default, exadmin should point to \\.\BackOfficeStorage and public should point to m:\domain.com\public folders. Having incorrect directory paths will cause this issue even if it is off by one letter. For example, if public folders was spelled public folder.
  
• Verify the correct folderpathname is listed for the http public folder. In the Internet Information Services (IIS) Manager, under properties of the actual virtual server object, on the Home Directory tab, the local path may be listed incorrectly, for example, "M:\example.com\MBX" (where example.com is the name of your domain). Change it to "M:\example.com\" and save the changes. Then, use the following procedure to clear the value of the folderPathname attribute.
  

  Caution:

  If you incorrectly modify the attributes of Active Directory objects when you use Active Directory Service Interfaces (ADSI) Edit, the LDP (ldp.exe) tool, or another Lightweight Directory Access Protocol (LDAP) version 3 client, you may cause serious problems. These problems may require that you reinstall Microsoft Windows Server™ 2003, Exchange Server 2003, or both. Modify Active Directory object attributes at your own risk.

  To clear the value on the folderPathname attribute

  1. Start the ADSI Edit tool from Windows 2000 Support Tools or from Windows Server 2003 Support Tools.

  2. Expand the following nodes:

     • Configuration Container
       
     • Configuration
       
     • Services
       
     • Microsoft Exchange
       
     • Organization_Name
       
     • Administrative Groups
       
     • Administrative_Group_Name
       
     • Servers
       
     • Exchange_Server_Name
       
     • Protocols
       
     • HTTP
       

  3. Right-click CN=100, and then click Properties.

  4. Click folderPathname in the Attributes list, and then click Edit.

  5. Remove the value that contains the incorrect path of the server by selecting the value and clicking Clear. Click OK two times to apply the change.

• Take a netmon trace when the client is attempting to connect to the public folders in the ESM. This trace will tell you what is being returned from IIS. The client, in this case, would ESM on another computer besides the Exchange server itself so that you can see the proper network traffic.
  

Error Message

Facility: Win32

Access denied.

Possible Causes

• There are instances where you are prompted for your network password and, after three attempts, you may receive this Access Denied error. This usually occurs when HTTP keep-alives are not configured for the default Web site.
  

Troubleshooting

• Get properties of the default Web site and then select the Enable HTTP Keep-Alives check box.
  

Error Message

Facility: Win32

Invalid Argument.

Possible Causes

• Anonymous-only authentication is set for the exadmin virtual directory. This error normally occurs if the DS2MB replication process if broken and an administrator changed the access permissions for this virtual directory to anonymous-only.
  

Troubleshooting

• Select the check box to enable Integrated Authentication and then find out why the DS2MB process is failing to replicate this information from Active Directory in to the Metabase.
  

Error Message

Facility: LDAP Provider

There is no such object on the server.

Possible Causes

• This error can occur if you are attempting to propagate permissions in the ESM for a top level folder in a mixed mode organization in which you have no local Microsoft Exchange Server version 5.5 replicas on this server.
  

Troubleshooting

• For more information about this problem, see Microsoft Knowledge Base article 317675, "XADM: You Receive an Error Message When You Propagate Public Folder Rights with No Replica on Exchange 2000"
  

Error Message

The handle specified is invalid

Possible Causes

• This error can occur if you are requiring SSL for the exadmin virtual directory under the default Web site, but there is no certificate bound to the Web site.
  
• Incorrect host header is configured for the default Web site.
  

Troubleshooting

• To resolve this issue, open the Internet Information Services (IIS) Manager. Get the properties of the exadmin virtual directory and select the Directory Security tab. From there, select the Edit button under Secure Communications. Clear the Require 128-bit encryption and the Require secure channel (SSL) check boxex. Click OK and then expand Public Folders again.
  
• If you do not have access to change this information in the Internet Information Services (IIS) Manager, you can manually remove this.
  
• Open a command prompt and go to the \inetpub\adminscripts folder.
  
• Run cscript adsutil.vbs enum w3svc/1/root/exadmin to view the settings for that virtual directory. You should see the following if you are experiencing this error.
       AccessSSL : (BOOLEAN) True
       AccessSSL128 : (BOOLEAN) True
  To change this to not require SSL, perform the following command.
  cscript adsutil.vbs set w3svc/1/root/exadmin/AccessSSL False
cscript adsutil.vbs set w3svc/1/root/exadmin/AccessSSL128 False
  
• Remove any incorrect host headers from the Web site
  

Error Message

Facility: Win32

A connection attempt failed because the connected party did not respond after a period of time, or established connection failed because connected host has failed to respond.

Possible Causes

• Incorrect host headers defined on clustered virtual server.
  

Troubleshooting

• Add or remove the correct host headers to Exchange virtual server in Internet Information Services (IIS) Manager.
  

Error Message

The operation failed due to an invalid format in the HTTP request. Verify that the host header is correct for the virtual server.

Possible Causes

• This error can occur if you have multiple IP addresses bound to the network card on the Exchange server and you have the default Web site bound to the secondary IP address.
  
• An invalid host header or IP address has been set for the default Web site
  
• Incorrect IP addresses or host header is set on the cluster virtual server.
  

Troubleshooting

• Try setting the default Web site to All Unassigned and then reopen the ESM and try to expand public folders.
  
• Correct the host header value or remove it completely.
  

Error Message

The operation failed due an internal server error

Possible Causes

• The default Web site is listening on a port other than port 80.
  
• Davex In-Process ISAPI application is not loaded or missing on the master WWW properties.
  
• ExchangeApplicationPool has been deleted in IIS.
  

Troubleshooting

• Check the IIS logs to see if all http requests are connecting over port 80. If any other port is listed, you will get this error.
  
• Use Metaedit or MBExplorer to add the Davex information back. A Metaedit sample view is shown in the following figure. After you add this back in, public folders should be able to expand immediately. The path to get to this is LM/W3SVC and then double-click InProcessIsapiApps to get the view shown in the figure.
  

  Note:
  Davex is also explicitly set at the virtual directory level, but that is not used for administration, only for viewing public folders through Outlook Web Access.

  
• If ExchangeApplicationPool appears to have been deleted, contact Microsoft Product Support Services for assistance with re-creating it. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, see the Microsoft Help and Support Web site.
  
• If all else fails, try the following:
  
  1. Perform a backup of the IIS Metabase. Right-click the servername in IIS Manager, select All Tasks, and then click Backup/Restore.
     
  2. Remove the Exadmin virtual directory.
     
  3. Open up a command prompt and go to the C:\Inetpub\AdminScripts directory
     
  4. Run cscript.exe adsutil delete ds2mb (this deletes the ds2mb in the Metabase).
     
  5. Restart the Exchange System Attendant (this will restart the Information Store serrvice and the MTA stacks, and re-create the Exadmin virtual directory).
     
  6. Verify that the Exadmin folder had been re-created in IIS Manager.
     
  7. Test to see if you can expand the public folder tree.
     
• For more information about IIS logging properties reference, see the IIS 6.0 Documentation Web site.
  

Error Message

The HTTP service used by Public Folders is not available, possible causes are that Public stores are not mounted and the Information Store service is not running.

Possible Causes

• Improper authentication method set in IIS for the public and exadmin virtual directories
  
• DS2MB process has not populated the proper entries in the IIS metabase
  
• Internet Explorer security settings are incorrect.
  
• Permissions in Active Directory are set incorrectly
  
• Realtime virus software is scanning the M: drive
  
• The msExchDS2MBOptions for the exadmin virtual directory is set incorrectly.
  
• There is an incorrect path listed for the properties of the exadmin virtual directory in IIS. This value should be \\.\BackOfficeStorage.
  

Troubleshooting

• Ensure that a proper authentication method is selected for the HTTP public virtual directory in ESM. If none is listed, you will receive this error. If the correct authentication method shows up in ESM, open the Internet Information Services (IIS) Manager to see if the same authentication method is listed for the public virtual directory. Also check the exadmin vdir for the same authentication method. If this authentication method is not present, then there is a problem with DS2MB replicating this information from Active Directory to the IIS metabase. Check the event log for additional information regarding the failing DS2MB process.
  
• Open ESM on another computer or server. If this works, this error is computer-specific.
  
• Set your Internet Explorer security settings to a lower setting such as Medium-low.
  
• Check permissions on the top level public folder using ADSIEdit or ESM to ensure no specific denies are set. Correct if necessary.
  
• Exclude the M: drive or hidden EXIFS mapping from any antivirus file-level scanning. Restart the server to release any locked or open files.
  
• If msExchDS2MBOptions is set to 0 for the exadmin virtual directory, this error will occur. Reset this back value to the default of 66 and allow time for replication to the metabase.
  

Error Message

Facility: Exchange System Manager

The operation failed because of an HTTP error 502

Possible Causes

• The exadmin virtual directory local path has a trailing backslash (\) in the path such as the following \\.\BackOfficeStorage
  

Troubleshooting

• Remove the trailing backslash for the virtual directory properties in IIS and then refresh ESM.
  

Error Message

The operation failed because of an HTTP error 501 (Not implemented). Verify that the ExAdmin virtual root exists on the destination server.

Possible Causes

• The cause of this is similar to Error ID c1030af7.
  

Error Message

The operation failed because of an HTTP error 501 (Not implemented). Verify that the ExAdmin virtual root exists on the destination server.

Possible Causes

• This error can occur if you have multiple Web sites configured and the default Web site is currently stopped. This Web site includes the associated virtual directories (exadmin, exchange, public, exchweb) that are not available when that site is stopped.
  
• The exadmin virtual directory is missing within IIS.
  

Troubleshooting

• Check to see if the exadmin directory exists in IIS under the default Web site. If it does not, at a command prompt in the \inetpub\adminscripts folder, type cscript adsutil.vbs delete ds2mb and press ENTER. This will remove the information from the metabase. Restart the System Attendant service to get this information repopulated in IIS.
  

Error Message

The operation failed due to HTTP error 501

Possible Causes

• This error can occur if there is another service taking up port 80.
  

Troubleshooting

• Run fport.exe 80 to find the offending service and either disable it or change its port number.
  

Error Message

Facility: Win32

No such host is known.

Possible Causes

• You are unable to resolve the DNS name for the server you are trying to connect to in ESM.
  

Troubleshooting

• Try pinging the server by both the NetBIOS name and the fully qualified domain name (FQDN).
  
• If the server's name is not registered in DNS, go ahead and register it. At a command prompt on the remote server, type ipconfig /registerdns. Verify in the DNS manager that this name was registered properly.
  

Error Message

The mail proxy for this folder can not be found. This may be due to replication delays. The mail enabled pages will not be shown.

Possible Causes

• The Recipient Update Service (RUS) is not stamping public folders with proxy addresses.
  
• The Microsoft Exchange System Objects folder is not located in the root of the domain.
  
• The public folder in question is not mail enabled.
  
• The ExchangeApplicationPool attribute has been deleted from IIS.
  

Troubleshooting

• To troubleshoot the Recipient Update Service (RUS), see Microsoft Knowledge Base article 321318, "Top support issues for the Exchange directory service"
  
• If you require assistance with the other possible causes, contact Microsoft Product Support Services for assistance. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, see the Microsoft Help and Support Web site.
  

Error Message

Facility: Win32

The requested name is valid and was found in the database, but it does not have the correct associated data being resolved for.

Possible Causes

• You are unable to resolve the DNS name for the server you are trying to connect to in ESM.
  

Troubleshooting

• Try pinging the server by both the NetBIOS name and the FQDN name.
  
• If the server's name is not registered in DNS, go ahead and register it. At a command prompt on the remote server, type ipconfig /registerdns. Verify in the DNS manager that this name was registered properly.
  

Error Message

Facility: Win32

The requested address is not valid in this context.

Possible Causes

• This error can occur if the msExchSecureBindings or msExchServerBindings attributes are populated with invalid information. For example, if port 443 is listed and no SSL certificate is bound to the default Web site, this error can occur.
  

Troubleshooting

• To resolve this issue, use the following procedure to remove the invalid information.
  

  Caution:

  If you incorrectly modify the attributes of Active Directory objects when you use Active Directory Service Interfaces (ADSI) Edit, the LDP (ldp.exe) tool, or another Lightweight Directory Access Protocol (LDAP) version 3 client, you may cause serious problems. These problems may require that you reinstall Microsoft Windows Server™ 2003, Exchange Server 2003, or both. Modify Active Directory object attributes at your own risk.

  To remove the value on the msExchSecureBindings attribute

  1. Start the ADSI Edit tool from Windows 2000 Support Tools or from Windows Server 2003 Support Tools.

  2. Expand the following nodes:

     • Configuration container
       
     • Configuration
       
     • Services
       
     • Microsoft Exchange
       
     • Organization_Name
       
     • Administrative Groups
       
     • First Administrative Group
       
     • Servers
       
     • Server_Name
       
     • Protocols
       
     • HTTP
       
     • CN=1
       

  3. Right-click Exadmin, and then click Properties

  4. Click msExchSecureBindings in the Attributes list, and then click Edit

  5. If the attribute value is set to 443, or any other value, remove the value by selecting the original value and clicking Remove. Click OK two times to apply the change.

  6. Close out of ADSI Edit, close and reopen Exchange System Manager and test Public Folder access again.

Error Message

The connection was refused. Ensure that your HTTP Virtual servers are all started and check that the WWW service is running.

Possible Causes

• This error can occur if the default Web site is not configured to use port 80 or an incorrect host header is configured.
  
• The default Web site is stopped in IIS, causing the exadmin virtual directory to be unavailable.
  
• The Web site is configured to use an external IP address, not an internal one.
  
• The msExchServerBindings attribute in Active Directory for the exadmin container has an incorrect port number populated.
  

Troubleshooting

• Change the default Web site to listen on port 80 and remove any host header entries.
  
• Start the default Web site on the Exchange server that you are attempting to connect to in ESM.
  
• Try binding the Web site to All Unassigned or an internal IP address.
  
• Verify that the msExchServerBindings port number for the exadmin virtual directory matches the port bound to the default Web site.
  
• Try connecting to another Exchange public folder to see if the same issue occurs on another server.
  

Error Message

The SSL certificate name is incorrect.

Possible Causes

• This error can occur if you have a certificate bound to the default Web site, you have required SSL on the exadmin virtual directory, and the certificate common name does not contain the FQDN of the server name that IIS is installed on.
  

Troubleshooting

• To resolve this issue, remove the certificate from the default Web site and request a new certificate that contains a common name of the FQDN of the server.
  

Error Message

Could not locate the root folder. Ensure that your default virtual server is running and it is configured correctly. If you have used the IIS Lockdown or URL Scanning security tools on your server, go to http://suport.microsoft.com for more information about running these tools.

Possible Causes

• The exadmin virtual directory local path is set to a value other than \\.\BackOfficeStorage
  
• This error can occur if the following are true.
  
  • Multiple IP addresses are bound to the NIC card.
    
  • Multiple Web sites are configured on the Exchange server.
    
  • The default Web site is bound to the secondary IP address that is bound to the NIC card.
    
  • No DNS mapping for the second IP that maps to the FQDN of the server.
    

Possible Causes

• HTTP keep alives are not configured for the default Web site.
  

Troubleshooting

• Get properties of the default Web site and then select the Enable HTTP Keep Alives check box.