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    <p>I'll admit his isn't a great answer, but the usual way to register VBScript events is to use the <code>GetRef</code> function to get a reference to the event handler, eg with an <code>MSXML2.XMLHTTP</code> object:</p> <pre><code>Set oHTTP = CreateObject("MSXML2.XMLHTTP") oHTTP.Open "GET", "http://www.google.com", True oHTTP.OnReadyStateChange = GetRef("oHTTP_OnReadyStateChange") Sub oHTTP_OnReadyStateChange ' do something End sub oHTTP.Send </code></pre> <p>The trouble is, I tried it for your code, ie</p> <pre><code>Set oHTTP = CreateObject("WinHttp.WinHttpRequest.5.1") oHTTP.Open "GET", "http://www.google.com", True oHTTP.OnResponseFinished = GetRef("oHTTP_OnResponseFinished") Sub oHTTP_OnResponseFinished ' do something End sub oHTTP.Send </code></pre> <p>and it didn't work, getting the error</p> <blockquote> <p>Object doesn't support this property or method: 'oHTTP.OnResponseFinished'</p> </blockquote> <p>but perhaps this can give you a starting point , or maybe you can use the <code>MSXML2</code> library instead?</p> <p>Just updating this answer with the <em>other</em> way of handling COM events - use the second parameter for the <code>CreateObject</code> function which allows you to specify the function prefix which connects functions to objects, eg</p> <pre><code>Set oHTTP = CreateObject("WinHttp.WinHttpRequest.5.1", "oHTTP_") oHTTP.Open "GET", "http://www.google.com", True Sub oHTTP_OnResponseFinished ' do something End sub oHTTP.Send </code></pre> <p>unfortunately, this doesn't work either - it must be that the <code>IWinHttpRequestEvents</code> interface is inaccessible</p>
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    1. POHandle Events from WinHttpRequest
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    1. COhmm, it seem that you need access to the `IWinHttpRequestEvents` ([see here](http://msdn.microsoft.com/en-us/library/aa383925(v=vs.85).aspx)) interface and I don't think there's a way in VBScript to use an object's alternative interface
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    2. COThe problem is the XmlHttp OnReadyStateChange is specifically designed to receive function pointer from a scripting environment. Whereas OnResponseFinished is a standard COM Event, you can't just assign to it like a property.
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      1. USAnthonyWJones
    3. COThanks. I use this method for "MSXML2.XMLHTTP". In my case this isn't a stating point; it's where I got stuck.
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      1. USCarlos Gil
 

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