404. That’s an error.

The requested URL /preferences?q=NERD_tree.vim&safe=active&client=pub-3005259998294962&cof=FORID:13%3BAH:left%3BS:http://www.vim.org%3BCX:Vim%2520Search%3BL:http://www.vim.org/images/vim_header.gif%3BLH:45%3BLC:%230000ff%3BVLC:%23663399%3BDIV:%23336699%3B&cx=partner-pub-3005259998294962:bvyni59kjr1&adkw=AELymgXtbIAySD4Syh3hDLrjrBJ3jQQAiaJQ6n8ILDHSQtIHfIJF8yHsko3p2f_23qN_DqdvNSvnVIC1v41qw5JP661GFQPbmrFYfjSkCh4Rb92Nlc7ALiCPMmiUNnnj3YVN61_sK5kQnoM3jq7GH9RvX1Yvf0_xqHO6vUBrK4xZWpslTPSBFv8&hl=en&channel=7394275211&boostcse=0&output=custom&ie=UTF-8&oe=ISO-8859-1&sa=F was not found on this server. That’s all we know.