@ Shiw Liang
Will you stop posting this sort of misleading c**P, the whole point of incremental virus definitions is to reduce the download size.
@ oscar8h
I have been using avast for a little over 6 years and I have been on dial-up all that time and I have never really had any issues with the incremental virus definitions being overly large.
The "Number of definitions: 2,724,726" you mention relates to the cumulative total, from your initial installation (which has a near complete copy of the virus definitions) and for each incremental virus definition update that you do this figure will also increase incrementally. On average the virus definition update will be measured in KBs and not MBs and even on dial-up won't take long.