1 - Novasoft Messenger Spam Blocker 1.0 Got a popup that looks like a windows message box? Think its a virus or a trojan? The answer is NO! but rather the newest form of unwanted advertising, or spam. This message was sent to your computer using software that uses a built in feature of windows that Microsoft included in your copy of Windows. License: Shareware OS: 9x/NT/2000/ME/XP Size: 1566 KB