This allows the handler to consider the context of the request and supply different lists for different situations. In essence, the file explorer asks the context menu handler “what verbs to you want me to display and what command to run if chosen”. The COM CLSID is also registered, which allows the dll to be found and loaded by the file explorer when needed. This gets registered under a ShellEx key under the file type, and here the Context Menu handler is defined by its COM CLSID GUID. The Shell Extension method is more dynamic, and requires the developer two write a special in-process COM based dll called a Context Menu Shell Extension. These verbs will then appear in the pop-up menu whenever the user right clicks on a file of that file type. In the registry, under the file type the developer adds a key called “shell”, and under there the developer can add verbs and the command line to be used. The Shell Integration method is the simplest for the developer.Notepad++ uses the special ‘*’ file type for its registration.Īs I wrote in The Application Book, Windows has two choices when it comes to implement the registration of the FTA, the Shell Integration method and the Shell Extension method. The special ones are for things like folders, drive, and a special case ‘*’ that means for any type of file. The standard ones are for files that have names that end in a file type extension, such as foo.xml. When it comes to File Type Associations, Windows has two types of file types. For Windows 10 deployments, we recommended converting the Context Menu into a Shell Menu as the solution.īut now in version 8.5.7 of Notepad++, the developer did some bizarre things that are causing us issues again. The better solution involved using a new type of application extension that is only available on Windows 11. Last year we worked out two solutions for this issue. This app has been difficult for many to package into MSIX, due to an issue with the Context Menu missing. The wicked cool open-source application Notepad++, a free XML editing tool, is an example of an app commonly deployed in enterprises that not only has a shortcut to start the application, but also uses the Windows file explorer File Type Associations to allow the end user to launch Notepad++ from any file on the system by right-clicking.
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