How to load libspatialite under C#

Load Spatialite library in .NET

//'using' System.Data.SQLite;

using (DbConnection connection = new SQLiteConnection("Data Source=" + database)) {
    connection.Open(); // load the extension 
    using (DbCommand command = connection.CreateCommand()) {
        //Load the libspatialite library extension - *.dll on windows, *.a on iOS
        command.CommandText = "SELECT load_extension('libspatialite-2.dll');";
        command.ExecuteNonQuery(); // Run queries here
    }
}