Associating a file extension with your application on Windows

In some cases, your fantastic application needs to be opened by just double-clicking on a file with an extension associated with it. This is the case with Microsoft Word, Microsoft Excel, and many other well-known pieces of software. If you have a file generated with a program, double-click on the file and the program that generated the file will come up, pointing to that file. So, if you click on mywordfile.docx, Microsoft Word will be opened and mywordfile.docx will be shown. This is what we'd like to do in this recipe. The association can be useful when you have multiple configurations for a program. Double-click on the ConfigurationXYZ.myext file and the program will start using that configuration.