XWEB: CDO Does Incorrect Time Zone Correction for Paris, Madrid, Amsterdam

ID: Q196200

The information in this article applies to:

Microsoft Outlook Web Access, version 5.5
Microsoft Exchange Server, version 5.5

SYMPTOMS

For dates falling between the last Sunday in September and the last Sunday in October, when you use a browser to access an Exchange Server 5.5 computer with Outlook Web Access (OWA) Service Pack 1 (SP1), if the Time Zone setting on this browser is the Paris, Madrid, or Amsterdam option, a new appointment created in the Calendar will appear one hour later than when viewed with the Outlook 98 client.

CAUSE

In 1996, the European Union (EU) standardized a EU-wide "summertime period." The EU version of Daylight Saving Time runs from the last Sunday in March through the last Sunday in October.

This change was not taken into account by the CDO libraries.

RESOLUTION

To resolve this problem, obtain the latest service pack for Exchange Server version 5.5. For additional information, please see the following article in the Microsoft Knowledge Base:

Q191014 XGEN: How to Obtain the Latest Exchange Server 5.5 Service Pack

The English version of this fix should have the following file attributes or later:


Component: Outlook Web Access

   File Name     Version
   ------------------------
   Cdo.dll       5.5.2503.0
   Cdohtml.dll   5.5.2503.0

STATUS

Microsoft has confirmed this to be a problem in Microsoft Outlook Web Access version 5.5. This problem was first corrected in Exchange Server 5.5 Service Pack 3.

Keywords : exc55 EXC55SP3Fix
Version : WINDOWS:5.5
Platform : WINDOWS
Issue type : kbbug