from the doc: 'ICQ Nuker is the program that nukes ICQ 2003 in the following way: - you choose login and target UINs and connect to login UIN; - after pressing button DO IT!, nuker send Unsupported Event Notification to target UIN which will reduce targetÆs ICQ to getting Error number 131 You are currently not connected to the ICQ Network.'
icqnuke.exe