Makes creating and removing file associations easier.
Also calls SHChangeNotify() to automatically update your file associations, and can even help sometimes if you have associated another program with a different file type, and the association for that isn't updating.
This code is made assuming you have already referenced icon-associator.dll in your project, and is using System.Windows.Forms.dll for the example.
Also, the two examples for adding and removing file associations should not be added in the same code block, they should be separate, as the removal would negate the addition, making usage of this library useless.
str_ExampleExtension = ".example";
FileAssociation association = FileAssociation.CreateOpenInfo(
Application.ExecutablePath, str_ExampleExtension,
// returns "<EXECUTABLE_PATH>" "%1" with <EXECUTABLE_PATH> being the file path to your .exe
FileAssociation.DefaultCLI(Application.ExecutablePath)
);
// add the association to your device registry if not already there
if (!AssociationManager.CheckForAssociationInfo(association))
AssociationManager.AddAssociationInfo(association);
// remove the association from your device registry if there
if (AssociationManager.CheckForAssociationInfo(association))
AssociationManager.RemoveAssociationInfo(association);