Not to bash your listing, but I'm not so sure about this one. Avast does not sell keys that last this long. Such keys are very likely created with key generators that get released by hacking groups and are both illegal and widely available for free download on the web.) In any event, the key may work for the moment but will surely be invalid toward any future version updates of the Avast software - which are sure to come before 2030.
Read read read read quick update if someone wins it im giving u the link through email for the trail because its to big for an email. so if u win u just need to download ot from my link then put the code i send u through email. ------happy bidding
Well, it makes more sense now as the Unix Millennium Bug (AKA 'Y2K38') is as far as current binaries are safe. More specifically, your key is good until 03:14:08 UTC on 19 January 2038. Unfortunately, it is illegal to sell hacked or leaked software (on Listia or anywhere else) and a quick search of Google.com for the term "Avast 2038" will show you that there is nothing unique about this and you probably should not offer stolen or generated keys here.
It's actually only free to "steal" online. Using it for personal purposes is theft (buyers should avoid); SELLING it is a much more serious matter that sellers should certainly avoid.