Hi Carlos, You don't have to register, you can just download Chimera (assuming this is for noncommercial use): <http://www.rbvi.ucsf.edu/chimera/download.html. Then, after you use Chimera several times, a registration dialog will automatically appear. Registering is still optional, though. Elaine ----- Elaine C. Meng, Ph.D. UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab Department of Pharmaceutical Chemistry University of California, San Francisco On Jun 11, 2014, at 8:38 PM, carlos martinez wrote:

how can i register to use chimera program