UltraSurf (AKA: 無界瀏覽) is one of the world's most popular free anti-censorship and pro-privacy applications, developed by UltraReach Internet Corporation in 2002. It was originally created to help internet users in Mainland China (where the Internet is heavily censored and Internet users' activities are monitored by the Great Firewall of China) bypass internet censorship and protect their online security & anonymity. After that, it became popular in many countries with Internet blockade due to its good usability, fast running speed and unlimited network traffic.

To cut/extract/capture the wonderful fragments in a video, many traditional video cutting tools are usually accompanied by problems such like: the cut video is incomplete or has quality distortion. In case, this free, open-source and cross-platform video/audio file trimmer & cutter LosslessCut (developed by Mikael Finstad from Norway) is able to work this out perfectly.

Ensure that the operating system we are using is an untouched, official version is the starting point for any Windows users to ensure their computer security. If your Windows was tampered, then all defensive measures would be unreliable and even unavailing. Hence, before installing a Windows ISO file downloaded from the Internet, you'd better use some special tools to verify its authenticity.

The BT torrent file based on the peer-to-peer (P2P) file sharing protocol is an important way to acquire and share network resources nowadays. But sometimes the files list within a torrent file downloaded from Internet can be very disordered, whereas what we need is probably just a part of the listed files. In particular, more and more torrent files were deliberately added a large amount of objectionable AD images, promotional texts, Internet Shortcuts linking to web pages, and other junk files by their makers or spreaders.

Quick Access Popup (QAP for short, successor of Folders Popup) is a free and open-source multi-purpose shortcuts launcher and folders switcher written in the portable programming language AutoHotkey (AKA: AHKScript, AHK for short) by Jean Lalonde from Canada.