2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/54098We discuss recent results on orbifold compactifications with (0,2) world sheet supersymmetry and continuous Wilson lines, emphasizing the role of modular symmetries. (This work is a contribution to the proceedings of the joint US Polish Workshop on Physics from the Planck scale to the Electro-Weak scale, Warsaw, 21.9. - 24.9.1994)4 pages, LaTexHigh Energy Physics - Theorytext