An IP multicast may not be sent correctly from Windows 2000, Windows XP, or Windows Server 2003 (827536)

RESOLUTION

Windows XP service pack information

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

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, Microsoft recommends that you wait for the next Windows Server 2003 or Windows XP 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 phone numbers and information about support costs, visit the following Microsoft Web site: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.

Prerequisites

No prerequisites are required.

Restart requirement

You must restart your computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

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.
Windows 2000

	Date         Time   Version           Size     File name
   	----------------------------------------------------------
   	12-Dec-2003  18:11  5.0.2195.6882     118,960  Afd.sys
   	12-Jan-2004  22:42  5.0.2195.6824     105,232  Msafd.dll        
   	12-Jan-2004  22:35  5.0.2195.6890     318,640  Tcpip.sys
   	12-Dec-2003  18:08  5.0.2195.6882      16,240  Tdi.sys
   	12-Jan-2004  22:42  5.0.2195.6824      17,680  Wshtcpip.dll     

Windows XP

	Date         Time   Version             Size   File name	
	----------------------------------------------------------
	17-Sep-2003  05:50  5.1.2600.1271     337,664  Tcpip.sys x86
	16-Sep-2003  00:30  5.1.2600.1271   1,106,432  Tcpip.sys IA-64

Windows Server 2003

	Date         Time   Version             Size   File name	
	---------------------------------------------------------
	13-Nov-2003  07:07  5.2.3790.103      333,824  Tcpip.sys x86
	13-Nov-2003  07:07  5.2.3790.103      971,776  Tcpip.sys IA-64