hey phoenix, don't know much c# but maybe instead of trying to open the file directly maybe you need to set up a request to the server and use the data you get back. I say this because i'm guessing the only place that the file would exist is in your browsers cache after it's been generated server-side.
let me know if that helps at all?
I am having the same problem with java. I can access http://www.hackthissite.org/missions/prog/2/ using URL objects and BufferedInputStream etc.
But when I try to access http://www.hackthissite.org/missions/prog/2/PNG I don't find anything to read.
I have tried to understand kr's suggestion. However I do not know what kind of request I should send, nor how to do it.
I have also tried retrieving the image from a local location on my browser's cache - using both firefox and ie, but cannot locate the image in temporary internet files or any other folders i have checked.
I have read the documentation for URL, URLConnection and HttpURLConnection but I still cannot figure out a solution. I am completely new to this area of programming but have searched extensively on google for suggestions.
If anyone could give me a few pointers I would be very grateful.
-- Sun Oct 10, 2010 6:39 pm --
Still stuck here.
I have also tried creating a shell script to download the image but that has not worked out any better.
I have been looking into Adress Bar query strings I might be able to attach to URL objects in Java but have not been able to find an appropriate one.
Even some simple explanation as to why the image cannot be accessed in the same way as /missions/prog/2/ would be very welcome.