For errors with: download.file() install.package() update.package() any other command that R uses to access the internet Setting up a proxy in R 2.2.1 for windows. I work at a Central Bank so our firewall and proxy are very particular. To allow R to access the net I did the following: 1. In order for other programs, specifically STATA, to access the internet we use a program called Privoxy. Download and setup Privoxy < http://www.privoxy.org/> on your machine. 2. In IE (I'm using 6.0) Tools > Internet Options > Connections tab > LAN Settings Unselect both checkboxes in the "Automatic configuration" frame. Select both checkboxes in "Proxy server" frame. Address: localhost Port: 8118. 3. From the cmd prompt (Start > Run > Open:cmd) navigate to the folder where you installed R. The default is cd C:\Program Files\R\R-2.2.1\bin. At the prompt type: C:\Program Files\R\R-2.2.1\bin>R - -internet2 This will start R calling internet2.dll and access the internet through IE and with the IE settings you defined in step 2. 4. While I could not get the internet capabilities of R to work without Privoxy, you may be more successful. If I were you I would begin by trying to use your usual IE proxy and firewall settings without Privoxy and the “- -internet2” option when starting R from the cmd prompt. I could not figure out to how to invoke the internet2.dll flag using the GUI in Windows. Feel free to contact me if you have questions, Andrew __________________________________ Andrew McCallum Research Associate - Macroeconomics Federal Reserve Bank of San Francisco __________________________________ [[alternative HTML version deleted]]