Category: At least Internet Explorer 6.0 in Windows XP with Service Pack 2 or Windows Server 2003 with Service Pack 1

This policy setting allows you to manage whether users are prompted to select a certificate when no certificate or only one certificate exists. If you enable this policy setting Internet Explorer does not prompt users with a “Client Authentication” message when they connect to a Web site that has no certificate or only one certificate. If you disable this policy setting Internet Explorer prompts users with a “Client Authentication” message when they connect to a Web site that has no certificate or only one certificate. If you do not configure this policy setting Internet Explorer prompts users with a Client Authentication message when they connect to a Web site that has no certificate or only one certificate.

This policy setting manages whether users will be automatically prompted for ActiveX control installations. If you enable this policy setting users will receive a prompt when a site instantiates an ActiveX control they do not have installed. If you disable this policy setting ActiveX control installations will be blocked using the Notification bar. Users can click on the Notification bar to allow the ActiveX control prompt. If you do not configure this policy setting ActiveX control installations will be blocked using the Notification bar. Users can click on the Notification bar to allow the ActiveX control prompt.

This policy setting determines whether users will be prompted for non user-initiated file downloads. Regardless of this setting users will receive file download dialogs for user-initiated downloads. If you enable this setting users will receive a file download dialog for automatic download attempts. If you disable or do not configure this setting file downloads that are not user-initiated will be blocked and users will see the Notification bar instead of the file download dialog. Users can then click the Notification bar to allow the file download prompt.

This policy setting allows you to manage whether applications may be run and files may be downloaded from an IFRAME reference in the HTML of the pages in this zone. If you enable this policy setting users can run applications and download files from IFRAMEs on the pages in this zone without user intervention. If you select Prompt in the drop-down box users are queried to choose whether to run applications and download files from IFRAMEs on the pages in this zone. If you disable this policy setting users are prevented from running applications and downloading files from IFRAMEs on the pages in this zone. If you do not configure this policy setting users are prevented from running applications and downloading files from IFRAMEs on the pages in this zone.

This policy setting allows you to manage settings for logon options. If you enable this policy setting you can choose from the following logon options. Anonymous logon to disable HTTP authentication and use the guest account only for the Common Internet File System (CIFS) protocol. Prompt for user name and password to query users for user IDs and passwords. After a user is queried these values can be used silently for the remainder of the session. Automatic logon only in Intranet zone to query users for user IDs and passwords in other zones. After a user is queried these values can be used silently for the remainder of the session. Automatic logon with current user name and password to attempt logon using Windows NT Challenge Response (also known as NTLM authentication). If Windows NT Challenge Response is supported by the server the logon uses the user’s network user name and password for logon. If Windows NT Challenge Response is not supported by the server the user is queried to provide the user name and password. If you disable this policy setting logon is set to Automatic logon only in Intranet zone. If you do not configure this policy setting logon is set to Prompt for username and password.