IConversationWindow interface isn't supported - despite the SDK description

Hi,

I'm writing a plugin extension in C++ (for version 9.0.0.2128) and I'm trying to get the conversation window object from the windows collection. The problem is that the conversation windows seem to be broken or unsupported: In specific the IConversationWindow interface mentioned in the SDK doesn't seem to exist (I get E_NOINTERFACE error while trying to call QueryInterface() on the window Dispatch object), and the IWindow interface does exist but returns an empty value for every property.

I checked a little further and the interfaces that seem to be supported by the conversation window object are:

1. IWindow (virtuall not supported since it returns empty values)
2. IParticipants
3. IScriptEventHandler

The IConversationWindow is essential for sending IM messages programatically.

Does anyone know if Yahoo dropped the IConversationWindow support completely?