Instance of IActiveScript, that implements the IE9's JavaScript engine (“Chakra”), works in a Quirks mode

Question

By creating an instance of IActiveScript on the basis of CLSID "{16d51579-a30b-4c8b-a276-0ff4dc41e755}" (as described here), we get IE9's JavaScript engine, which works in a Quirks mode. Unfortunately, in the Quirks mode is not supported ECMAScript 5.

Does anyone know how to create an instance of the IActiveScript for the “Chakra”, that works in the IE9 standards mode?

Answer 1

Cast your IActiveScript to IActiveScriptProperty then call SetProperty with SCRIPTPROP_INVOKEVERSIONING on it like that:

CComQIPtr<IActiveScriptProperty> property = jscript;
CComVariant version(SCRIPTLANGUAGEVERSION_5_8 + 1); // = 3
hr = property->SetProperty(SCRIPTPROP_INVOKEVERSIONING, nullptr, &version);

Answer 2

I believe the CLSID is 16d51579-a30b-4c8b-a276-0ff4dc41e755. There's all sorts of great information on the Active Script and JScript interfaces here, especially for those working with C#.