I have Secunia PSI, v2. I just received notification that Google Gears 0.x needs to be updated. I have had Secunia for several years and I have never seen this come up for update before.
In clicking on it in Secunia it says it is located in: C:\Program Files\AVAST Software\Avast\sfzone\gears.dll, version 0.5.33.0