Microsoft KB Archive/271549

= XWEB: Outlook Web Access and Collaboration Data Objects Daylight Saving Time Transition Change for Australia in Year 2000 =

Article ID: 271549

Article Last Modified on 10/26/2006

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APPLIES TO


 * Microsoft Exchange Server 5.5 Standard Edition

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This article was previously published under Q271549





SYMPTOMS
Because the Olympic Games are scheduled to be held in September, 2000, in Sydney, Australia, several Australian states (New South Wales, Victoria, Australian Capital Territory, and Tasmania) have moved the daylight saving time transition start date forward two months (for the year 2000 only), from the last Sunday in October to the last Sunday in August.

Programs that are built by using Microsoft Collaboration Data Objects (CDO), such as Microsoft Outlook Web Access (OWA), may not correctly reflect this change to the daylight saving time transition date because CDO maintains an internal table to track time zone information. This table is not updated with changes that are made to the operating system time zone.



RESOLUTION
To resolve this problem, obtain the latest service pack for Exchange Server 5.5. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

191014 XGEN: How to Obtain the latest Exchange Server 5.5 Service Pack



STATUS
Microsoft has confirmed that this is a problem in Microsoft Exchange Server version 5.5. This problem was first corrected in Exchange Server 5.5 Service Pack 4.



MORE INFORMATION
After you install this fix, applications that are written using CDO (such as the AutoAccept event script) can be updated with the new Sydney year 2000 time zone.

You need to modify part of the OWA Active Server Pages (ASP) code to enable OWA users to use the new time zone. In particular, you need to modify the Set.asp file in the Webdata\Usa\Options folder so the new time zone can be selected on the Options page. The following is an example of the modifications that need to be made to the Exchange Server 5.5 Service Pack 3 version of the Set.asp file.

At around line 151, change the following array definition

Function AmToIdx(n) Dim A        '1   2   3   4   5   6   7   8   9  10 11 12 13 14 15 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35 36 37 38 39  40  41  42  43  44  45  46  47  48  49  50  51 A = Array(-1, 20, 24, 23, 22, 28, 25, 26, 16, 13, 11, 7, 6, 4, 3, 2, 1, 50, 45, 43, 42, 41, 39, 37, 34, 33, 31, 30, 15, 19, 18, 21, 17, 14, 12, 10, 9, 8, 5, 0, 49, 48, 47, 46, 44, 40, 38, 36, 35, 27, 29, 32) AmToIdx = A(n) End Function to the following Function AmToIdx(n) Dim A        '1   2   3   4   5   6   7   8   9  10 11 12 13 14 15 16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35 36 37 38 39  40  41  42  43  44  45  46  47  48  49  50  51  52 A = Array(-1, 20, 24, 23, 22, 28, 25, 26, 16, 13, 11, 7, 6, 4, 3, 2, 1, 50, 45, 43, 42, 41, 39, 37, 34, 33, 31, 30, 15, 19, 18, 21, 17, 14, 12, 10, 9, 8, 5, 0, 49, 48, 47, 46, 44, 40, 38, 36, 35, 27, 29, 32, 51) AmToIdx = A(n) End Function The preceding changes provide for a fifty-second entry in the array &quot;A&quot; with a value of &quot;51&quot; as the newly reference able time zone.

At around line 451, after the following lines (GMT+11:00) Magadan, Soloman Is., New Caledonia (GMT+12:00) Fiji Is., Kamchatka, Marshall Is. (GMT+12:00) Wellington, Auckland add a new line as follows (GMT+10:00) Canberra, Melbourne, Sydney, Hobart (Year 2000 only) This addition makes the new time zone available from the list on the OWA Options page. After users select this new time zone, subsequent appointments are created correctly. For additional information, click the article number below to view the article in the Microsoft Knowledge Base:

259474 Notification of Australian Daylight Savings Changes for Microsoft Products for the Year 2000

Keywords: kbhotfixserver kbqfe kbbug kbexchange550presp4fix kbexchange550sp4fix kbfix kbqfe KB271549

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