Haven't you tried the new food4Rhino Remote yet?
Fully integrated as a panel (Rhino 4 or Rhino 5 32 and 64-bit), the food4Rhino Remote facilitates the search, installation and management of Rhino plug-ins, Grasshopper add-ons and textures.
What are you waiting for? Download it free of charge now at http://www.food4rhino.com/remote
food4Rhino is the new plug-in community service by McNeel. Find the newest Rhino plug-ins, Grasshopper add-ons, textures and backgrounds. Add your comments and rate them, discuss new tools, get in contact with the developers of these applications, and - why not? - also share your applications.