VMD is made available free of charge for non-commercial use to all interested users (but please see the Disclaimer below). We would like to request that you register with us that you are using VMD. This is so that we can maintain some idea of the number of users of the program and so that we know who to contact about program updates, bug fixes, etc. To register, please fill out the form at
http://www.ks.uiuc.edu/Research/vmd/VMDregistration.html.
We appreciate your help in this service.