Installing new commands or packages

Dear Statalists
I tried to download new Stata commands but I received the following error message. Please if you have any suggestion to install new commands.I'm using Stata13


. ssc install winsor
proxy host not found
http://fmwww.bc.edu/repec/bocode/w/ either
1) is not a valid URL, or
2) could not be contacted, or
3) is not a Stata download site (has no stata.toc file).
r(660);