The (and its successor, ComparePlus ) is an essential tool for developers and writers who need to analyze differences between two text files quickly. If you are using a 64-bit Windows environment, downloading and installing the x64 version of this plugin is straightforward through either the built-in Plugins Admin or a manual installation from official repositories . How to Install the Notepad++ Compare Plugin (x64) Method 1: Using Plugins Admin (Recommended)
The easiest way to get the latest x64 version is through the native manager in Notepad++ . Notepad++, compare plugin installation - Stack Overflow