It allowed a program from the editor and access the in-memory edit buffer. In the mid 1970s, the EDT text editor ran on the Unisys VS/9 operating system using the UNIVAC Series 90 mainframe computer. But UXP-based applications, like web browsers Pale Moon and Basilisk, keep supporting (NPAPI) plug-ins. Mozilla deprecated plug-ins for its products. The term, "plug-in", however, strictly refers to NPAPI-based web content renderers.
Mozilla applications come with integrated add-on managers that, similar to package managers, install, update and manage extensions. Extensions comprise a subtype, albeit the most common and the most powerful one. "Add-on" can refer to anything that extends the functions of a Mozilla application. In Mozilla Foundation definitions, the words "add-on", " extension" and "plug-in" are not synonyms. Programs may also implement plug-ins by loading a directory of simple script files written in a scripting language like Python or Lua. Thus the HyperCard stack became a self-contained application in its own right, distributable as a single entity that end-users could run without the need for additional installation-steps.
HyperCard supported a similar facility, but more commonly included the plug-in code in the HyperCard documents (called stacks) themselves. Programmers typically implement plug-ins as shared libraries, which get dynamically loaded at run time. Conversely, the host application operates independently of the plug-ins, making it possible for end-users to add and update plug-ins dynamically without needing to make changes to the host application. Plug-ins depend on the services provided by the host application and do not usually work by themselves. The host application provides services which the plug-in can use, including a way for plug-ins to register themselves with the host application and a protocol for the exchange of data with plug-ins. ( Browser extensions, which are a separate type of installable module, are still widely in use.) Examples include the Adobe Flash Player, a Java virtual machine (for Java applets), QuickTime, Microsoft Silverlight and the Unity Web Player. Web browsers have historically used executables as plug-ins, though they are now mostly deprecated.Visual Studio itself can be plugged into other applications via Visual Studio Tools for Office and Visual Studio Tools for Applications.
Graphics software use plug-ins to support file formats and process images.
plug-ins for those respective components of the PlayStation 2. For example, the PCSX2 emulator makes use of video, audio, optical, etc. Video game console emulators often use plug-ins to modularize the separate subsystems of the devices they seek to emulate.Pretty Good Privacy is an example of such plug-ins. Email clients use plug-ins to decrypt and encrypt email.
Ardour, Audacity, Cubase, FL Studio, Logic Pro X and Pro Tools are examples of such systems.