Hi Anindito Sen2013/9/20 Anindito Sen <[log in to unmask]>
<skip>. You can also use Pymol (but I think thats not free any more??).</skip>I do not know what your definition of "free" is, but PyMOL is an open-source project. You can download the code from http://sourceforge.net/projects/pymol/
To me, that means free.
It is also possible to pay for PyMOL http://www.pymol.org/pymol which will give you an easy installer for windows and support amongst other things.
Sorry for the OT post,
Folmer
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Folmer Fredslund