DLL file is a dynamic database file, is an executable file, in general, he is to allow the program to perform special tasks required by the Code and resources, the general DLL file is followed by the DLL extension file, but some may also be exe and other extensions. They provide code, data, or functions to programs running under the Windows operating system. Programs can open, enable, query, disable, and close drivers according to the instructions in the DLL file.
Generally when we execute a program, the corresponding automatically call the DLL file, a program with multiple DLL files, a corresponding DLL file may be called by several applications. DLL files are generally stored in the C:windowssystem directory.
Said DLL file How to open, we know DLL file is not run independently of the program, he is running a program called automatically, is a part of the program, all we do not recommend open DLL file, and users do not need to open it to edit it. But if the user wants to see what's inside, it can also be opened with a few tools. Software such as UltraEdit, Microsoft Visual Studio 2010 can also be turned on. But users do not have to modify the contents of the DLL file, which may cause some programs or games can not run the situation.
The functional benefits of DLL format files:
1. dlls are dynamic databases that can use multiple applications to share code and data.
2, in the hook program filtering system messages must use the dynamic database
3, the DLL is a natural way to divide a large program into several small modules, so that more conducive to the group's content personnel division of staff.
4, we implement the internationalization of the application, we will use the DLL dynamic database.