Hi, I am attempting to associate pdb and mol2 file types with Chimera 1.8rc in Windows 7. I have tried to set it using the right-click>open with... option in Windows as well as through the control panel. I select the chimera executable, but it does not seem to accept it as a valid program, and it returns to the previous screen without adding Chimera to the box for selection. I know this is not a Windows issue, as I can set other programs and it works fine. As well, I can set other programs for the mol2 and pdb file types. Is this a known issue, is there any work around. It's not the biggest deal, but it would make my life a little easier if I could do this. It used to work in the past, but just not with the latest version. Thank you and have a great day! 

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-Dylan J. Bennett
 Dylan.John.Bennett@Gmail.com
 (914) 621-1149
 Stony Brook University
 dylan.bennett@stonybrook.edu
 
 New York Medical College
 Biochemistry
 BSB Room 102
 dylan_bennett@NYMC.edu