Angry IP Scanner issue

We had loaded Angry IP Scanner on one PC (Win XP) on the network.  Then, on another PC (Win 7), we started getting antivirus messages to fix or exclude registry changes related to Angry IP.   I uninstalled Angry IP on the XP machine.  I have tried both options (fix or exclude) on the Win 7 machine and keep getting the same message.  I'm unable to find any files related to Angry IP on the Win 7PC.  I would like to eliminate the files trying to make the registry changes and thus stop the anti-virus messages.