With the publication of the recent exploit of Windows *.wmf files, it would seem that the best way to avoid any problems would be to filter out or block any *.wmf files.
This is easily done using Zone Alarm Pro for incoming mail. The problem is that I have found no way to block *.wmf files when browsing the net. I can't find any way to configure my router/firewall or Zone Alarm to provide any protection from web based exploits using *.wmf files.
Does anyone have any suggestions how this could be done?