XWEB: Outlook Web Access Error Message: Unable to Render View (184304)


The information in this article applies to:

  • Microsoft Exchange Active Server Components 5.0
  • Microsoft Outlook Web Access 5.5
  • Microsoft Exchange Server 5.0
  • Microsoft Exchange Server 5.5
This article was previously published under Q184304
IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry

SYMPTOMS

When you try to access your mailbox using the Outlook Web Access client, the following error messages may be displayed:
Unable to Render View

-or-

Unable to Render This View

CAUSE

Incorrect security permissions are set on the following registry keys:

HKEY_LOCAL_MACHINE\SYSTEM\currentcontrolset\services\MsExchangeweb

- and -

HKEY_LOCAL_MACHINE\SYSTEM\currentcontrolset\services\W3SVC

RESOLUTION

Other settings that should be checked are the permissions on the following directories on the Microsoft Outlook Web Access server:

\Exchsrvr\Res directory

\Exchsrvr\bin directory

In both of the above cases, the Everyone group should have Full Control.

If correcting the above permissions does not correct the Unable to Render View problem, follow these steps to reregister the cdo.dll and cdohtml.dll files.

  1. Stop the IIS Admin service, which stops the following services (if they are running):
    • World Wide Web Publishing Service
    • Microsoft SMTP Service
    • Microsoft NNTP Service
    • FTP Publishing Service
  2. Reregister Cdo.dll and Cdohtml.dll by typing the following syntax at a command prompt:
       "regsvr32 c:\winnt\system32\cdo.dll" (without the quotation marks)

   - and then -

   "regsvr32 c:\exchsrvr\bin\cdohtml.dll" (without the quotation marks)
NOTE: The paths for the Cdo.dll and Cdohtml.dll files assume that these directories are on drive C; if this is not the correct drive for your system, change the drive letter of the path to point to the correct drive location of the files.

If reregistering these libraries does not correct the problem, re-apply the most recent Microsoft Exchange Server service pack.

WORKAROUND

WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To set the correct permissions for the above listed registry keys, do the following:

  1. Start the Registry Editor (Regedt32.exe).
  2. Select the keys in the "Cause" section of this article, one at a time.
  3. On the Security menu, click Permissions.
  4. Click Add, and click Everyone.
  5. Click Full to change the permission to full, and then click OK.
  6. Click to select the Replace Permission on Existing Subkeys check box, and then click OK.
  7. Stop the Exchange Server services, and restart the computer.
Modification Type:MajorLast Reviewed:11/25/2003
Keywords:kbprb kbusage KB184304
©2003 Microsoft Corporation. All rights reserved.