C# App: How to SetValueSubKey for "DisableTaskMgr" on registry

[thupham]

I have a function:

private void HideTaskPanel()
        {
            //lay goc la HKEY_CURRENT_USER
            RegistryKey RootKey = Registry.CurrentUser;
            //lay subkey
            RootKey.OpenSubKey("Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\System",true);
 
            RootKey.SetValue("DisableTaskMgr",1);
            RootKey.Close();
        }

when testing on registry, I not found "DisableTaskMgr", can you help me to write that value on registry.
Thanks

[thupham]

I have repair it in new code:

Microsoft.Win32.RegistryKey regKey = Microsoft.Win32.Registry.CurrentUser.CreateSubKey("Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\System");
            regKey.SetValue("DisableTaskMgr", 1);
            regKey.Close();
 

but it appear new message box:
"Task Manager has been disable by your administrator"
I want to hide this message box, can you show me??

[CyberSoftHari]

Can you explain how it is showing the message box? Your code looks good.

You can change this like

Microsoft.Win32.RegistryKey regKey = SomeAssignment;

Like

using Microsoft.Win32; // at the add class part 
 
private void mymethod()
{
    RegistryKey regKey = SomeAssignment;
}

[Frinavale]

I have repair it in new code:

Microsoft.Win32.RegistryKey regKey = Microsoft.Win32.Registry.CurrentUser.CreateSubKey("Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\System");
            regKey.SetValue("DisableTaskMgr", 1);
            regKey.Close();
 

but it appear new message box:
"Task Manager has been disable by your administrator"
I want to hide this message box, can you show me??

Is there a problem with this message popping up?
It seems to me that you would really want to inform the user that your code has disabled the task manager.

Please explain what you are trying to do in more detail.

[thupham]

I want to prevent user press Ctrl+Alt+Del, but I can't. So I want to hide task manager. but it appears an message box. I don't want so. Can you help me ??
Thanks

[CyberSoftHari]

You are bit lazy to describe your problem. You done the code for disable Task manager and asking to disable the message box. But I am not getting any message box some one may get,let me know!
Can you explain what you done and when and where it is showing the message box?

[painkiller]

are u trying to create some kinda spyware :)

[thupham]

Please read my last post, I'm not lazy and not write spyware, that's problem in my project. Can you read carefully the question upper, and you will know.
I use the code before to hide task manager when you press Ctrl+Alt+Del. I write a key in registry, you can review the code before. But after I write that key success, I press Ctrl+Alt+Del, the appear a pop up message "Task Manager has been disable by your administrator", and I want to hide pop up message. How to do that???

[CyberSoftHari]

Okay, What is your windows version?
In XP you will not get this messagebox.

[The1corrupted]

Okay, What is your windows version?
In XP you will not get this messagebox.

Strange, I got a bit of spyware that did just this. I run Windows XP and I still got the message >.> Of course, it was spyware, so I murdered it with a stick.

[painkiller]

checkout this post:
Task Manager Disabled Registry Key

it doesnt give the vb.net code but it gives you the exact registry key that needs to be
added/deleted in order to show/hide task manager

hope this helps

[thupham]

Okay, What is your windows version?
In XP you will not get this messagebox.

Oh, what's a pity. I use Win XP Professional version 2002 Service Pack 2. But it also appear that pop up message. How to hide popup message by C#???.
Thu

[CyberSoftHari]

I don’t know why it’s not popping for me! I Never changed your code.

[Shashi Sadasivan]

use the SendKey Class to simulate tab/enter keys to communicate with the pop up box, and subside it

[thupham]

use the SendKey Class to simulate tab/enter keys to communicate with the pop up box, and subside it

Can you explain more about using the SendKey Class to simulate tab/enter keys to communicate with the pop up box. How will we write it in C#??

[Shashi Sadasivan]

In your C# class, type in
SendKeys.Send("{TAB}");
It shows up in intellisense so you will not miss it.
Though of the class is not a form type then you will have to use the namesapce System.Windows.Form
the rest is explanatory.

Search online on how to send commands using this (like enter, shift+Tab, etc)