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Tuesday, 15 November 2011

Disable Task Manbyager Delphi




Simple tricks that are used to disable the emergence of the Task Manager in Windows XP.

Method # 1: Disable the Task Manager via System Policy.
Declaration procedure:
DisableTaskMgrBySysPol procedure (const e: Boolean);
const
   Key = "Software \ Microsoft \ Windows \ CurrentVersion \ Policies \ System ';
begin
   {"TASK MANAGER HAS BEEN DISABLED BY ADMINISTRATOR"}
   with TRegistry.Create do
   begin
     RootKey: = HKEY_CURRENT_USER;
     try
       if OpenKey (Key, True) then
         WriteBool ('DisableTaskMgr', e);
     finally
        free;
     end;
   end;
end;

Example of implementation:
procedure TForm1.Button1Click (Sender: TObject);
begin
   DisableTaskMgrBySysPol (True);
end;


Method # 2: Disable the Task Manager via Image File Execution.
Declaration procedure:
DisableTaskMgrByImageFileExec procedure (const e: Boolean);
const
   Key = 'SOFTWARE \ Microsoft \ Windows NT \ CurrentVersion \'
          'Image File Execution Options \ taskmgr.exe';
begin
   {Task Manager will not be executed}
   with TRegistry.Create do
   begin
     RootKey: = HKEY_LOCAL_MACHINE;
     try
       if OpenKey (Key, True) then
       begin
         if e then WriteString ('debugger', '')
         else DeleteValue ('debugger');
       end;
     finally
        free;
     end;
   end;
end;

Example of implementation:
procedure TForm1.Button1Click (Sender: TObject);
begin
   DisableTaskMgrByImageFileExec (True);
end;


Method # 3: Disable the Task Manager through FindWindow. This way you have to continuously monitor whether the Task Manager is active or not. You can use a timer to monitor them.
Declaration procedure:
DisableTaskMgrByWindow procedure;
var
   targetHwnd: hWnd;
begin
   / / Task Manager Window Handle
   targetHwnd: = FindWindow ('# 32770', 'Windows Task Manager');
   SendMessage (targetHwnd, WM_CLOSE, 0, 0);
end;

Example of implementation:
TForm1.Timer1Timer procedure (Sender: TObject);
begin
   DisableTaskMgrByWindow;
end;

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