This setting prevents you from making changes to Calender and Contacts List in Programs tab of Internet Options.
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Prevent Changes in Content Tab in IE.reg
The '.reg' file can disable changes to Calendar and Contacts List.
Allow Changes in Content Tab in IE (Default).reg
The '.reg' file can enable changes to Calendar and Contacts List.
Registry Entry Details:
Apply registry settings according below given steps of screenshots with related changes.
Changes to Calendar and Contacts List is disabled.
Changes to Calendar and Contacts List is enabled.
First, click the Start button, and select Run. In the resulting dialog box, type "regedit"
Second, go to [HKEY_CURRENT_USER\Software\Policies\Microsoft\] and create a new key "Internet Explorer"
Third, create a subkey "Control Panel" under "Internet Explorer".
Fourth, create a DWORD value "CalendarContact".
Now,right-click on "CalendarContact" and select 'Modify'
Finally, set the value data to “1” in the textbox provided and click on 'OK'.
Other Related Tweaks
Restrict viewing source in Internet Explorer (For Windows 98/Me).
Category : Software / Applications > Internet Explorer
Internet Explorer gives the option to view the source of a webpage. With this setting, you can turn off the function to view the source.
Customize the title of Internet Explorer window. (For Windows 98/Me).
With this setting, you can customize the window title of Internet Explorer.
Turn off the “Synchronize” menu item in Internet Explorer.
This setting turns off the functionality of the menu item “Synchronize”, on the “Tools” menu of Internet Explorer.
Disable the expanding of the menu item “New” in Internet Explorer (For Current User).
This setting can reduce the default list of sub-menu item “New” in Internet Explorer to a single-sized option list “New Window”, which can open a new Internet Explorer window.
Disable the expanding of the menu item “New” in Internet Explorer (For All Users).