If this check box is selected, the application connects to update sources, Kaspersky Security Network services, external Anti-Spam services, and Kaspersky Lab activation servers using a proxy server with the settings defined in the application.

If this check box is cleared, the application establishes connections according to the default settings of the operating system.

The check box is cleared by default.

IP address or domain name of the proxy server.

Port number of the proxy server.

The default value is 8080.

Enables / disables authentication when connecting to the proxy server.

The check box is cleared by default.

User name and password for authentication when connecting to the proxy server.

This button opens an operating system window in which you can select an account from Active Directory.