CityNet Email Protection Measures

Currently CityNet protects our subscribers by changing the extension (the last three characters of a file name like .exe) on a number of files so that they cannot be inadvertently clicked on and activated. What we do is change the dot (.) to a tilde (~). The following extensions are altered:

".exe", ".com", ".lnk", ".bat", ".pif", ".scr", ".asd", ".chm", ".cil", ".dll", ".hlp", ".hta", ".js" , ".nws", ".ocx", ".reg", ".shs", ".shb", ".vb" , ".wsc", ".wsf", ".wsh",

If we need to run a file that we have altered, all you have to do is save the file and change the name back to the dot extension.