I installed the updates from http://support.microsoft.com/kb/2468871 in Windows 2008 R2. Planning to install it on Windows 2003 R2 SP2. The update was installed without much delay and it worked without a restart.
It replaces 2183292 (http://support.microsoft.com/kb/2183292/ ) FIX: "Failure sending mail" error message when you send an email message by using a .NET Framework 4-based application that uses the "System.Net.Mail.SmtpClient" class if the email attachment is larger than 3 MB
2413613 (http://support.microsoft.com/kb/2413613/ ) A shortcut menu may appear far away from the mouse pointer when you run a Windows Presentation Foundation application that is based on the .NET Framework 4
2298853 (http://support.microsoft.com/kb/2298853/ ) FIX: Visual Studio 2010 error: "Error 1 error MSB4014: The build stopped unexpectedly because of an internal failure"
2461678 (http://support.microsoft.com/kb/2461678/ ) A .NET Framework 4-based WPF application crashes if the source object of a data binding in a control is an element that is defined outside the name scope of the control
2484841 (http://support.microsoft.com/kb/2484841/[anySimpleType]/ ) FIX: A .NET Framework 4.0-based WPF application may stop responding if you right-click a control to open a pop-up control
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该错误已修复：https://connect.microsoft.com/VisualStudio /Downloads/DownloadDetails.aspx?DownloadID=30226
The bug has been patched: https://connect.microsoft.com/VisualStudio/Downloads/DownloadDetails.aspx?DownloadID=30226
我在 Windows 2008 中安装了 http://support.microsoft.com/kb/2468871 的更新R2。计划将其安装在Windows 2003 R2 SP2 上。更新的安装没有太多延迟，并且无需重新启动即可运行。
它取代了
2183292
(http://support.microsoft.com/kb/2183292/)
修复：当您使用基于 .NET Framework 4 且使用“System.Net.Mail.SmtpClient”类的应用程序发送电子邮件时，如果电子邮件附件大于 3 MB，则会出现“发送邮件失败”错误消息
2413613
(http://support.microsoft.com/kb/2413613/)
当您运行基于 .NET Framework 4 的 Windows Presentation Foundation 应用程序时，快捷菜单可能会出现在距离鼠标指针较远的位置
2298853
(http://support.microsoft.com/kb/2298853/)
修复：Visual Studio 2010 错误：“错误 1 错误 MSB4014：构建由于内部故障而意外停止”
2461678
(http://support.microsoft.com/kb/2461678/)
如果控件中数据绑定的源对象是在控件名称范围之外定义的元素，则基于 .NET Framework 4 的 WPF 应用程序会崩溃
2484841
(http://support.microsoft.com/kb/2484841/[anySimpleType]/)
修复：如果右键单击控件以打开弹出控件，基于 .NET Framework 4.0 的 WPF 应用程序可能会停止响应
希望这会有所帮助。
谢谢，
拉加夫
I installed the updates from http://support.microsoft.com/kb/2468871 in Windows 2008 R2. Planning to install it on Windows 2003 R2 SP2. The update was installed without much delay and it worked without a restart.
It replaces
2183292
(http://support.microsoft.com/kb/2183292/ )
FIX: "Failure sending mail" error message when you send an email message by using a .NET Framework 4-based application that uses the "System.Net.Mail.SmtpClient" class if the email attachment is larger than 3 MB
2413613
(http://support.microsoft.com/kb/2413613/ )
A shortcut menu may appear far away from the mouse pointer when you run a Windows Presentation Foundation application that is based on the .NET Framework 4
2298853
(http://support.microsoft.com/kb/2298853/ )
FIX: Visual Studio 2010 error: "Error 1 error MSB4014: The build stopped unexpectedly because of an internal failure"
2461678
(http://support.microsoft.com/kb/2461678/ )
A .NET Framework 4-based WPF application crashes if the source object of a data binding in a control is an element that is defined outside the name scope of the control
2484841
(http://support.microsoft.com/kb/2484841/[anySimpleType]/ )
FIX: A .NET Framework 4.0-based WPF application may stop responding if you right-click a control to open a pop-up control
Hope this helps.
Thanks,
Raghav