Http头信息可以通过Navigate函数的最后一个参数Headers传入
object.Navigate2( _
URL As Variant, _
[Flags As Variant,] _
[TargetFrameName As Variant,] _
[PostData As Variant,] _
[Headers As Variant])
。。。
Headers
Optional. A value that specifies additional HTTP headers to send to the server. These headers are added to the default Microsoft Internet Explorer headers. The headers can specify things like the action required of the server, the type of data being passed to the server, or a status code. This parameter is ignored if a URL is not an HTTP URL.