Accelerweb is the latest in simple Internet acceleration technology. It caches DNS settings to the hosts file. Each time you type a domain name, a request must be sent to a DNS server requesting the IP address for that domain name (an IP address is a 12 digit code for the server). These requests take time to complete. It will store this information in a local cache called the "Hosts" file. This will reduce the time required for a site to download.