Disable/Enable Javascript in Internet Explorer programmatically

Hello everybody,

Currently I was involved in a project where I had to disable Javascript from registry.

After a lot of searching and googling I came across these links:

http://kb.iu.edu/data/ahqx.html

http://support.microsoft.com/kb/182569 

But for me, I had to do it programmatically so I started writing the code and after some issues and problems, It worked. :).

I came across number of similar questions on other forums. Owing to my big heart, I decided to blog it and here I am:

I am not going in much detail as starting from create a Website or web Application or windows appluication and blah blah blah!

Assuming you are all smart programmers, I would start with creating a button and working on its click.

In the design page: 

 Just create a button on the page with text as Disable Javascript and name as 

btnDisableJavascript

In the code page:

Namespace: using Microsoft.Win32;

   //Click of btnDisableJavascript

    protected void btnDisableJavascript_Click(object sender, EventArgs e)

    {

         bool disable = false;

        if (btnDisableJavascript.Text == "Disable Javascript")

        {

            disable = true;

            btnDisableJavascript.Text = "Enable Javascript";

        }

        else

        {

            disable = true;

            btnDisableJavascript.Text = "Disable Javascript";

        }

        EnableDisableJavaScript(disable);

    }

    //Disable/Enable Javascript from code(Registry):

    public static void EnableDisableJavaScript(bool enable)

    {

         //get the registry key for Zone 3(Internet Zone)

        RegistryKey key = Registry.CurrentUser.OpenSubKey(@"Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3", true);

        //get the registry key for Zone 1(Local Intranet Zone)

        RegistryKey keyLocalFiles = Registry.CurrentUser.OpenSubKey(@"Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1", true);

        //get the registry key for Zone 1(My Computer)

        RegistryKey keyMyComputer = Registry.CurrentUser.OpenSubKey(@"Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0", true);

        if (value == true)

        {

            try

            {

                if (key != null)

                {

                    //1400 is the DWORD for Scripting: Active scripting

                    //setting of "3" prohibits the specific action i.e. disable for this case

                    key.SetValue("1400", "3", RegistryValueKind.DWord);

                    keyLocalFiles.SetValue("1400", "3", RegistryValueKind.DWord);

                    keyMyComputer.SetValue("1400", "3", RegistryValueKind.DWord);

                }

                else

                {

                    key = Registry.CurrentUser.OpenSubKey(@"Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3");

                    keyLocalFiles = Registry.CurrentUser.OpenSubKey(@"Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1");

                    keyMyComputer = Registry.CurrentUser.OpenSubKey(@"Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0", true);

                    //1400 is the DWORD for Scripting: Active scripting

                    //setting of "3" prohibits the specific action i.e. disable for this case

                    key.SetValue("1400", "3", RegistryValueKind.DWord);

                    keyLocalFiles.SetValue("1400", "3", RegistryValueKind.DWord);

                    keyMyComputer.SetValue("1400", "3", RegistryValueKind.DWord);

                }

            }

            catch (Exception ex)

            {

            }

        }

        else

        {

            try

            {

                if (key != null)

                {

                    //setting of "0" sets a specific action as permitted i.e. enable for this case

                    key.SetValue("1400", "0", RegistryValueKind.DWord);

                    keyLocalFiles.SetValue("1400", "0", RegistryValueKind.DWord);

                    keyMyComputer.SetValue("1400", "0", RegistryValueKind.DWord);

                }

                else

                {

                    key = Registry.CurrentUser.OpenSubKey(@"Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3");

                    keyLocalFiles = Registry.CurrentUser.OpenSubKey(@"Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1");

                    keyMyComputer = Registry.CurrentUser.OpenSubKey(@"Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0");

                    //1400 is the DWORD for Scripting: Active scripting

                    //setting of "0" sets a specific action as permitted i.e. enable for this case

                    key.SetValue("1400", "0", RegistryValueKind.DWord);

                    keyLocalFiles.SetValue("1400", "0", RegistryValueKind.DWord);

                    keyMyComputer.SetValue("1400", "0", RegistryValueKind.DWord);

                }

            }

            catch (Exception ex)

            {

            }

        }

    }

When you'll run, the disable javascript button is displayed as follows:

Click this button, after processing is complete, go to Tools>Internet Options< Active Scripting

you can see the checkbox for Disable is checked as below

and the Text of the button is changed to Enable Javascript:

Now if you run any website involving javascript, you can very easily figure out that javascript is disable:

For example try and run www.msn.com; you'll not be able to see any thing over ther as the javascript is disabled.

Click this button now and after processing is complete, Tools>Internet Options< Active Scripting

you can see the checkboxes for you can see the checkbox for Enable is checked as below:

Now after scripting is enabled try and run www.msn.com; you'll it will run as it used to.

And thats a yippi and happy case.

As our target is achieved.

Thats all for "Disable/Enable Javascript in Internet Explorer programmatically".

Catch you all some other day with some other knowledge stuff.