  The orbifolder is a program developed in C++ that computes and analyzes the
low-energy effective theory of heterotic orbifold compactifications. The
program includes routines to compute the massless spectrum, to identify the
allowed couplings in the superpotential, to automatically generate large sets
of orbifold models, to identify phenomenologically interesting models (e.g.
MSSM-like models) and to analyze their vacuum-configurations.
