using System;
using System.Runtime.InteropServices;

    [ComImport, Guid("4e530b0a-e611-4c77-a3ac-9031d022281b"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
    internal interface IApplicationAssociationRegistration
    {
        [return: MarshalAs(UnmanagedType.LPWStr)]
        string QueryCurrentDefault([MarshalAs(UnmanagedType.LPWStr)] string pszQuery, Global.AssociationType atQueryType, Global.AssociationLevel alQueryLevel);

        [return: MarshalAs(UnmanagedType.Bool)]
        bool QueryAppIsDefault([MarshalAs(UnmanagedType.LPWStr)] string pszQuery, Global.AssociationType atQueryType, Global.AssociationLevel alQueryLevel, [MarshalAs(UnmanagedType.LPWStr)] string pszAppRegistryName);

        [return: MarshalAs(UnmanagedType.Bool)]
        bool QueryAppIsDefaultAll(Global.AssociationLevel alQueryLevel, [MarshalAs(UnmanagedType.LPWStr)] string pszAppRegistryName);

        void SetAppAsDefault([MarshalAs(UnmanagedType.LPWStr)] string pszAppRegistryName, [MarshalAs(UnmanagedType.LPWStr)] string pszSet, Global.AssociationType atSetType);

        void SetAppAsDefaultAll([MarshalAs(UnmanagedType.LPWStr)] string pszAppRegistryName);

        void ClearUserAssociations();
    }

    [ComImport, Guid("591209c7-767b-42b2-9fba-44ee4615f2c7")]
    internal class ApplicationAssociationRegistration
    {
        // Coclass is implemented by the runtime callable wrapper
    }