unable to install avast freeware 2012 due to incompatibility statement regarding online armour firewall program. the question is - does avast provide a freeware program that is compatible with online armour??
Not heard of avast 2012, the latest stable is 6.0.1367.
Concerning OA you might be required to have avast installed first then OA, not 100% sure on that though as i haven’t used OA in over a year but many user’s here do use the both together.
You can safely use both programs - provided that you set mutually exclusions.
Just in case you have not installed OA yet, then I recommend setting the exclusions for Avast in OA during the installation process (i.e., during the Safety Check Wizard).
You might also be interested in a recent thread about Avast and OA: http://forum.avast.com/index.php?topic=93485.0