msxml3: Assign the IBindStatusCallback as soon as it created.

[Jacek Caban]

On 2/18/11 10:24 AM, Alistair Leslie-Hughes wrote:
> Hi,
> This stops a crash in httprequest_get_responseText, when running from 
> a webpage since "This->bsc" was NULL.
>

Tests, please.

Jacek