Hi folks, been a while I know. I just dug up an old fix that a friend of mine helped me with a while back and I thought I would share it here. It all has to do with the .NET function Directory.GetFiles() which you will find in your System.IO library.

You would think that in the age of Popblocking web browsers that the use of Popup or Popunder advertisement would be abandoned. Well apparently it hasn't been by one free email service. GMX, which is popular here in Germany, has the annoying habit of using popup advertisement on their web pages. What makes it more annoying is that they apparently have figured out how to get around the builtin popup blocker of Firefox (tested in 3.0 and 3.5). How do they do it? Beats the hell out of me but it is quite annoying. Before you say "How do you know your computer doesn't have any malware that's causing it?" I can answer you that I keep my computer extremely clean and do scans on a regular basis. Also the popups ONLY happen on GMX, no other site is getting around the Firefox popup blocker.

This how to addresses redirecting to a different website when someone's IP matches one that is blocked, where the blocking list can contain addresses with wildcards.

Here is a simple function that allows you to both read, write, and append to a text file:

The function should return 0 if it is correct otherwise it returns the error code.