You will need to place ODE.DLL in your System32 directory or in the ODE application(s) directory. Credits: ODE / Open Dynamics Engine Copyright (c) 2001,2002, Russell L. Smith http://www.q12.org/ode/ DelphiODE was created and is maintained by Mattias Fagerlund ( mattias@cambrianlabs.com ) Christophe Hosten ( chroma@skynet.be ) http://www.cambrianlabs.com/Mattias/DelphiODE/