A real-time protection against virus, rootkit, trojans, spyware, adware, rogue and other types of malware is provided by AVG and Ad-Aware. Both products also includes game mode, schedule scan, on-demand scanner, malware removal, appearance customization, behavior-based protection and detection, a rootkit removal, and customization, and single file scanners.
What AVG does not have that Ad-Aware has are the following tools: Process Watch, AutoStart Manager, Hosts File Editor, TrackSweep, and an option to run a quick scan. Ad-Aware on the other hand does not include an e-mail scanner and anti-phishing protection.