== User32.dll ==<!-- This section is linked from [[Graphics Device Interface]] -->
'''user32.dll''' allows programs to implement a [[graphical user interface]]. It contains basic functions, such as window management, user input, text, etc. '''shell32.dll''' uses these functions to implement Windows' standard controls, including buttons, check boxes, and input fields.
'''user32.dll''' is a DLL that implements the Windows User API Client Library. It is a core file for several versions of the [[Microsoft Windows]] [[operating system]]. If this file is damaged or deleted, the operating system will not work.
=== Viruses ===
Because this file is a core Windows DLL, several [[Computer virus|viruses]] attempt to infect it. Some of these viruses are:
