How to amend Dlls
We are using an external Dlls as :

    [DllImport("DemoExport.dll")]
        public static extern string GetDBConnection(string sDBName);
        [DllImport("DemoExport.dll")]
        public static extern int CreateEmptyDBFromDB(string SourceDBName, string DestinationDBName);
        [DllImport("DemoExport.dll")]

Now, we want to add new method in same pattern. We are looking that is there any way to implement method in DemoExport.dll?So, we can use the method say DemoMethod() like:

    [DllImport("DemoExport.dll")]
        public static extern void DemoMethod();

It might look like a crazy question, but we really have need to implement this method so, later on we can use the same
How to amend Dlls
===

We are using an external Dlls as :

    [DllImport("DemoExport.dll")]
        public static extern string GetDBConnection(string sDBName);
        [DllImport("DemoExport.dll")]
        public static extern int CreateEmptyDBFromDB(string SourceDBName, string DestinationDBName);
        [DllImport("DemoExport.dll")]

Now, we want to add new method in same pattern. We are looking that is there any way to implement method in DemoExport.dll?So, we can use the method say DemoMethod() like:

    [DllImport("DemoExport.dll")]
        public static extern void DemoMethod();

It might look like a crazy question, but we really have need to implement this method so, later on we can use the same