How to install root certificate on Windows Phone 7?

Question

Just can not find how to install root certificate on Windows Phone 7. Does anyone know?

Answer 1

I wanted to use CharlesProxy on Windows Phone. What I did was the following:

1. Go to charlesproxy.com/charles.crt (file will be downloaded)
2. Save file as .cer instead of .crt
3. E-mail file to an e-mail account that can be openen with an e-mail application on WP (somehow you can't download e-mail attachments using a webbrowser on WP)
4. Click on attachment (once for download, twice for installing)
5. Have fun proxying.