Microsoft KB Archive/816922

= Exchange 2000 OWA Clients Receive Blank Page When Socket Is Prematurely Closed =

Article ID: 816922

Article Last Modified on 2/20/2007

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APPLIES TO


 * Microsoft Exchange 2000 Server Standard Edition

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SYMPTOMS
Exchange 2000 Outlook Web Access (OWA) clients may occasionally receive blank pages from the Exchange 2000 server when a front-end server and back-end server topology is used.



CAUSE
This problem may occur if Exprox.dll tries to use a socket that was closed out by the Microsoft Internet Security and Acceleration (ISA) Server. When this behavior occurs, the front-end server returns a 503 error that causes a blank page to appear in the OWA client.



Cumulative Rollup Information
To resolve this problem, obtain the September 2003 Exchange 2000 Server Post-Service Pack 3 (SP3) Rollup. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

824282 September 2003 Exchange 2000 Server Post-Service Pack 3 Rollup

Hotfix Information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Exchange 2000 Server service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Component: OWA

The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

  Date         Time   Version            Size    File name --  04-Mar-2003  23:17  6.0.6430.0      3,915,776  Cdoex.dll 04-Mar-2003 23:03  6.0.6430.0        827,392  Davex.dll 04-Mar-2003 23:17  6.0.6430.0      3,571,712  Excdo.dll 04-Mar-2003 22:56  6.0.6430.0        258,048  Exmime.dll 04-Mar-2003 23:03  6.0.6430.0      2,138,112  Exoledb.dll 04-Mar-2003 22:53  6.0.6430.0         81,920  Exosal.dll 04-Mar-2003 23:03  6.0.6430.0        303,104  Exprox.dll 04-Mar-2003 21:50  6.0.6430.0      2,285,568  Mdbmsg.dll 04-Mar-2003 21:34  6.0.6430.0         32,768  Mdbrole.dll 04-Mar-2003 22:55  6.0.6430.0      4,644,864  Store.exe Note Because of file dependencies, this update requires Microsoft Exchange 2000 Server Service Pack 3 (SP3). For additional information, click the article number below to view the article in the Microsoft Knowledge Base:

301378 How to Obtain the Latest Exchange 2000 Server Service Pack



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

Additional query words: FE/BE kbExchange2000preSP4septbarFix

Keywords: kbhotfixserver kbqfe kbqfe kbfix kbexchange2000presp4fix kbbug KB816922

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