Is it possible to write XML file hosted on website using vbscript?

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VBScript

I am facing a problem regarding writing xml file.

My browser is IE9.

I have a vbscript which writes xml file on local machine. But when i try to write an XML file hosted on website with same code by just changing the file path, i am getting error.

here is a snippet of my code

FileName="http://www.samplewebsite.com/Filename.xml"
Set xmlDoc = CreateObject("Microsoft.XMLDOM")
xmlDoc.Async = "False"
xmlDoc.Load(FileName)
/*Logic to write xml file*/
xmlDoc.Save FileName

So my question is

Is it possible to write XML file hosted on website using vbscript? if yes, how?