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By using this tweak you are able to restrict access to the Internet when using Internet Explorer and other Microsoft compatible products such as Office.

Open your registry and find the key below.

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings]

Change the value of "ProxyEnable" and set it to "1". Change the value of "ProxyServer" and set it to an IP address and port that is invalid on your network such as "10.0.0.1:5555" (i.e. "IP:Port").

By changing these settings Internet access will be disabled for any applications that rely of the Microsoft proxy server information such as Internet Explorer, Microsoft Office, Opera browser.

To stop users from modifying the proxy settings add these restrictions to disable changes to the Internet configuration.

Find or create the key below:

[HKEY_CURRENT_USER\Software\Policies\Microsoft\Internet Explorer\Control Panel]

Create two DWORD values named "Connection Settings" and "Connwiz Admin Lock" and set them both to "1".

To remove the restriction, set the proxy settings back to their original values and delete the policy values.

Note: The change will take effect immediately for any new browser windows, existing Internet Explorer sessions will not be affected until the browser is closed and reopened.

		(Default)	REG_SZ	(value not set)
		ProxyEnable	REG_DWORD	0x00000001 (1)
		ProxyServer	REG_SZ	10.0.0.1:5555

	HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Set...

Disclaimer: Modifying the registry can cause serious problems that may require you to reinstall your operating system. We cannot guarantee that problems resulting from modifications to the registry can be solved. Use the information provided at your own risk.