Consider the following scenario. You take the following actions on a computer that is running Microsoft Windows XP or Microsoft Windows Server 2003:

1. You install the 2007 time zone update for Microsoft Windows operating systems that is documented in the following Microsoft Knowledge Base article:
   928388 2007 time zone update for Microsoft Windows operating systems
2. You install the C run-time (CRT) update that is documented in the following Microsoft Knowledge Base article:
   932590 FIX: Windows-based applications that use the TZ environment variable may not work as expected because of changes to DST
3. You set the TZ environment variable.

In this scenario, when you create a custom application that uses the JScript version 5.7 Date object, the time is reported incorrectly for dates that are between the second Sunday in March and the first Sunday in April for the year 2007. Instead of the time being reported in daylight saving time, the time is reported in standard time. For example, for March 30, 2007, the JScript Date object reports time in standard time instead of in daylight saving time.

Note: JScript version 5.7 is included with Windows Vista. Additionally, when you install Internet Explorer 7 on a computer that is running Windows XP with Service Pack 2 (SP2), Windows XP Professional x64 Edition, or Windows Server 2003 SP1, JScript version 5.7 is installed.

Consider the following scenario:

• You download a compressed (zip) file from the Internet to a computer that is running one of the following operating systems:
  • Windows Vista
  • Windows Server 2003 Service Pack 1
  • Windows Server 2003 Service Pack 2
  • Windows XP Service Pack 2
• You save this file to a disk that is formatted by using the NTFS file system.
• You extract the files from the compressed file by using the Extract All Files wizard.

In this scenario, the modified date of the extracted files changes to the date that you extracted the files.

Note: This problem does not occur when you use a third-party tool, such as WinZip, to extract the files.

Consider the following scenario. You have a domain on which user accounts reside and another domain on which computer accounts reside. You have established a trust relationship between these domains. However, when you try to log on to a Windows Vista-based client computer across the trust, the logon process fails. Additionally, you receive an error message that contains a white “X� inside a red circle. The text of this error message resembles the following:

There is a time and/or date difference between the client and server.

Note: This issue occurs even though there is no significant time difference between the client computer and the server. This issue occurs only on Windows Vista-based client computers.