Mednafen (short for My Emulator Doesn't Need A Frickin' Excellent Name, formerly known as Nintencer) is a free, open-source and multi-system video game console emulator for Windows, Mac and Linux platforms. It already emulates nearly 20 home and handheld game consoles from Atari to PS1 era, such as FC, MD, GB, GBA, PS, SS, PC-FX, etc.

SubInACL is a tiny tool from Microsoft for performing permission management on folders, files, registries, services, and other objects. It was released as one of the tools in Windows Resource Kits. It is very powerful and practical, and much more powerful than cacls and its replacement, icacls. It is considered to be an edge tool for setting access permissions, suitable for professionals such as programmers and administrators.

Office Tool Plus is simple yet very helpful one-stop deploying tool specially designed for Microsoft Office, developed by Yerong (a senior high school student) from China. It is primarily used to quickly download, configure/customize, install, activate and manage all Microsoft Office products.

Packing a program is the most common way developers protect their software. Therefore, in order to crack some software, the first step is to detect whether it has been packed. Detect It Easy (DiE for Short) is a very powerful and easy-to-use PE packers detection tool developed by horsicq from Germany. It has very comprehensive and functional PE packer detection functions, simple operation, and is widely used as one of the most important auxiliary tools for software cracking for now.

In the current Internet environment, most commercial software can be cracked, and that is just a matter of cost and time at most. In order to protect their software from reverse engineering or cracking, almost all software developers use a lot of codes with complex encryption algorithms. That not only costs developers a lot of energy and expense, but also makes the program more chaotic and bloated, and the final effect is not obvious.