7-Zip, believe that a lot of people heard of it, but few of us really used, just because we are accustomed to the most common WinRAR and the once - great WinZIP. Anyway, 7-Zip is the one which currently has a extremely high compression ratio archiver (developed by Igor Pavlov from Russia), this also is the most important technical characteristics measure for such applications. In addition, 7-Zip releases based under GNU LGPL , so it is open source and free.

Notepad++ (also called Notepad plus plus) is a very distinctive open-source pure text editor. Its function is much stronger than the Windows built-in Notepad editor, besides can be used to make a general pure text file, it is also suitable to write computer programs for programmers as a source code editor.

FastCopy claiming to be the fastest file copy/delete software on Windows platforms, due to its powerful and superior performance, it is beyond almost all the other similar tools in a very period of time.

When you rename or delete a file/folder, Windows maybe popup a dialog error message box to show you that "Can't delete files: File is being used by another person or program" , now how to do?