CFF Explorer is an application that is designed to make easy PE editing. It comes with special fields description and modification which is .NET supported, utilities, rebuilder, hex editor and import adder. It also contains, signature scanner, signature manager, scripting, disassembler, dependency walker and many others. It has the ability to support extension as well. It is the first PE editor that comes with a support for .NET internal structures and a resource editor that can handle .NET manifest resources. It has a series of efficient tools to aid users. In addition, it provides a multi-file environment and a user friendly interface.