China patent electronic application network can't log in foreign service.

On the China patent electronic application website, there is a "controlled download" under the password input on the right. Click "download control" to download the control, and basically follow the instructions inside, but you don't need to install a digital certificate, just install a CA certificate and OCX control.

Set IE according to the instructions, IE 1 1 and win 10 win7 can be used.

Pay attention to Internet Options-Security-Enable Protected Mode, and the check box should be cleared. Otherwise, after entering the custom level, the set activeX control will be disabled by itself after being enabled. So I can't log in to the external service module of the electronic application website, and it keeps showing 500.