Search:

You mentioned it six or more times... :eek:
So implement the TCP/IP using raw sockets. Or you could use MFC CAsyncSocket class.

Is it a (about HTTP Request) from the Chome SDK documentation?
And...

Did you search for some Google Chrome SDK that offer you the tools for such a communication? Have you found?

We do NOT.
And you seam to not "see any reason to use HTTP request" either! Do you?

Exactly! :thumb:
And unfortunately it is what we have here since the last nine days and more than 22 posts! :thumbd:

Well, again:
1. It has nothing to do with HTTP.
2. Search fo the chrom documentation (SDK or API or something else...)

Well, what is your problem in this context?

Why does it need to "communicate with the toolbar"?
Which toolbar do you mean: standard Chrome browser toolbar or Google toolbar-plugin for other browsers (aka Google toolbar)? In anyway you will...

Well, first reread the post ##5,6,13.
Now, please choose whether we will still discuss here your problems with HTTP requests or you will start a new thread to discuss the problems about...

What do you mean by "communication between Chrome and a VC++ DLL"? What DLL? :confused:

Well, if you already have a working code using WinINet then you can port it to WinHTTP:
http://msdn.microsoft.com/en-us/library/windows/desktop/aa384068(v=vs.85).aspx
If not - then develop your...

AFAIK HTTPInterface is to communicate with WebInet (HTTP), not with the browser items.
Read the Chrome documentation if you want to communicate with a Chrome toolbar.

MSDN:
http://msdn.microsoft.com/en-us/library/windows/desktop/aa384322(v=vs.85).aspx
Some other sites:
http://c.happycodings.com/code-snippets/code38.html
Google:...