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The ((TOP)) Download Of The Specified Resource Has Failed Msxml3 Dll



How to Fix the Error "The Download of the Specified Resource Has Failed Msxml3 Dll" in Excel VBA




If you are using an MSXML.HTTPRequest object in a VB macro (excel) to communicate with an HTTP server, you may encounter the following error intermittently:




The Download Of The Specified Resource Has Failed Msxml3 Dll



msxml3.dll -2146697211 The system cannot locate the resource specified.


This error can be caused by various reasons, such as network issues due to proxy or firewall, library installation issues, or incorrect HTTP method. In this article, we will show you some possible solutions to fix this error and avoid it in the future.


Solution 1: Use the Full URL




One common reason for this error is that the strHTTP variable in your code does not contain the full URL of the server page. For example, if your code looks like this:


strHTTP = "getDataResponse.aspx?wocode="+strWoCode+"&mode=report";


objXMLHttp.open ("POST",strHTTP,false)


objXMLHttp.send (objXMLdom);


You need to change it to something like this:


strHttp = "http://www.mywebsite.com/getDataResponse.aspx?";


strHTTP = strHTTP + "wocode="+encodeURIComponent (strWoCode)+"&mode=report";


objXMLHttp.open ("POST",strHTTP,false)


objXMLHttp.send (objXMLdom);


This way, you can ensure that the server page can be located by the MSXML object. Also, don't forget to encode your strWoCode variable to prevent URL injection[^1^].


Solution 2: Change the HTTP Method




Another possible reason for this error is that the HTTP method you are using is not supported by the server or is blocked by some firewall or proxy settings. For example, some servers may not allow GET requests for security reasons. In this case, you can try changing the HTTP method from GET to POST or vice versa. For example, if your code looks like this:


objHttp.Open "GET", strURL, False


objHttp.setRequestHeader "Content-Type", "application/x-www-form-urlencoded"


objHttp.setRequestHeader "User-Agent", "Mozilla Compatible (MS IE 3.01 WinNT)"


objHttp.Send (objXMLdom);


You can try changing it to something like this:


objHttp.Open "POST", strURL, False


objHttp.setRequestHeader "Content-Type", "application/x-www-form-urlencoded"


objHttp.setRequestHeader "User-Agent", "Mozilla Compatible (MS IE 3.01 WinNT)"


objHttp.Send (objXMLdom);


This may solve the problem if the server accepts POST requests but not GET requests[^2^]. However, be aware that changing the HTTP method may also affect how the server processes your request and how you receive the response. You should always check the documentation of the server page and test your code before deploying it.


Solution 3: Reinstall or Update Msxml3.dll




A less common reason for this error is that the Msxml3.dll file on your system is missing, corrupted, or outdated. This file is a component of Microsoft XML Core Services (MSXML), which provides XML-related functionality for various applications. If this file is damaged or incompatible with your system, you may encounter errors when using MSXML objects in your code. To fix this issue, you can try reinstalling or updating Msxml3.dll from Microsoft's website[^3^]. You should also check if there are any updates available for your Windows system and Office applications.


Conclusion




In this article, we have discussed some possible solutions to fix the error "The Download of the Specified Resource Has Failed Msxml3 Dll" in Excel VBA. We hope that these tips can help you resolve this issue and improve your code performance. If you have any questions or feedback, please feel free to leave a comment below. c481cea774


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