Original sentence: Skinnable — Program is skinnable GUI
Edited sentence: After each 14 month period, the user of the software must re-register to receive a new free license key.All Avast.Antivirus normally updates itself freely for the first 14 months of usage as long as the using computer is connected to the Internet.Editions have a completely skinnable GUI/Interface and free downloadable skins from their website.The program is free for home and non-commercial use so it is often compared with the free version of AVG Technologies' AVG Anti-Virus.Unless upgrading to the pay version, registration currently remains free.exe which scans for viruses using a minimalist interface.is compatible with various archiving software (including WinRAR) and IM applications, because of its tool, ashquick