An update to Ad-aware Free and Pro has been released. This is what's included:

Updated Version of Anti-Virus Engine
The new version brings improvements to the way definition updates are applied, and should make updates significantly faster
Your computer will need to be restarted for the update to have full effect. 

Fix for Ad-Watch Issue
A fix for an issue where the Ad-Watch Registry and Network modules would be partially activated in Ad-Aware Free. 

Fix for Scheduler Crash
A fix for an bug where Ad-Aware would crash in the Scheduler on some systems.

Crash fix
Fix for a bug that in extremely rare cases could cause system crashes.