Detecting 404 while internet explorer is downloading

[lobOnline]

I want to do this:

While my internet explorer com object is openening a page, I start a thread that opens a connection with the server of that page on port 80. The thread will check if the page exists or if a 404 (page not found) occurs.

Why do I want to do it like this and not just read the http response from the internet explorer com object?

Because there is NO way to do this ((((

All I want to know from you, please help me with this one, is it going to make my program run slow, unstable or some sort?

 

[rolandfg]

If you are talking about CppWebBrowser component in C++ Builder 5 don't worry. I'm developing a web browser and the 404 error does not seem to create problems to the application.