No, a good way to get rid of Kazaa spyware is to use KazaaLite in the first place.
Benjamin, BTW, is a non-destructive virus. It was originally meant to reroute web traffic to a commercial site, now defunct. It's easily detected and removed by most antivirus.
If you have an antivirus that's about to expire but you have Kazaa, then you really have a permanent antivirus...Just download the next AV program off Kazaa!
My only problem with KazaaLite is that ZoneAlarm seems to have a conflict with it that stops it from opening under new ZA versions.