2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/37129The North American Linear Collider Detector group has developed simulation and analysis program packages. LCDROOT is one of the packages, and is based on ROOT and the C++ programing language to maximally benefit from object oriented programming techniques. LCDROOT is constantly improved and now has a new topological vertex finder, ZVTOP3. In this proceeding, the features of the LCDROOT simulation are briefly described.3 pages, 2 figures, Talk presented at Snowmass 2001High Energy Physics - Experimenttext