msxml4.0 sp4

Old news, but it matters to some. If you're using MSXML4 and you get this while doing a POST:

舊消息，但這對某些人很重要。 如果您使用的是MSXML4，并且在執行POST時得到此信息：

msxml4.dll error '80072efd' A connection with the server could not be established

msxml4.dll錯誤'80072efd' 無法建立與服務器的連接

It might be because of the tightened security around MSXML 4.0 SP2.

可能是由于圍繞MSXML 4.0 SP2加強了安全性。

The docs say:

文檔說：

"Security in the implementation of the MSXML 4.0 SP2 ServerXmlHttp object has been enhanced to check the Internet Explorer security policy setting for submitting non-encrypted form data. A security policy setting of "Disable" or "Prompt" for the "Submit nonencrypted form data" option will result in an "Access Denied" error message when attempting to post form data using the ServerXmlHttp object. This is a change that can potentially break existing code that uses earlier versions of the ServerXmlHttp object (such as prior released versions of both MSXML 3.0 and MSXML 4.0) to post form data when the Internet Explorer security policy setting for submitting non-encrypted form data is not enabled."

“已增強了MSXML 4.0 SP2 ServerXmlHttp對象的實現中的安全性，以檢查Internet Explorer安全策略設置以提交未加密的表單數據。對于“提交未加密的表單數據，安全策略設置為”禁用”或“提示”嘗試使用ServerXmlHttp對象發布表單數據時，“選項將導致”訪問被拒絕“錯誤消息。此更改可能會破壞使用ServerXmlHttp對象的早期版本(例如兩個MSXML的先前發行版本)的現有代碼。 3.0和MSXML 4.0)在未啟用用于提交未加密表單數據的Internet Explorer安全策略設置時發布表單數據。”

This might happen if you have an existing application running on, say, Windows 2000, then you upgrade the machine to Window 2003 and get the new MSXML "for free." Remember - know the application stack, the whole stack if you can. The OS is part of the stack, and in this case, XML is too.

如果您有一個運行在Windows 2000上的現有應用程序，則可能會發生這種情況，然后將計算機升級到Window 2003并“免費”獲得新的MSXML。 記住-如果可以的話，了解應用程序堆棧，整個堆棧。 操作系統是堆棧的一部分，在這種情況下，XML也是。

翻譯自: https://www.hanselman.com/blog/security-in-msxml4-and-80072efd

msxml4.0 sp4

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