I am currently building Angular 2 demos from behind a corporate proxy server with known issues for blocking both NPM and TypeScript \'typings\' installs. While I have been able
I have had ongoing problems with this issue for some time now. However, after the Final Release of Angular 2 and the accompanying update to the angular-cli package, I have been able to download and install angular-cli globally with no issues on a Windows 64-bit computer using the Command Prompt behind a proxy.
Hope this helps someone!