Блокировка Диспетчера Задач в NT


function CTRL_ALT_DEL(off: Boolean):boolean;
var
reg: TRegistry;
begin
reg := TRegistry.Create;
reg.RootKey := HKEY_CURRENT_USER;
reg.OpenKey('Software', True);
reg.OpenKey('Microsoft', True);
reg.OpenKey('Windows', True);
reg.OpenKey('CurrentVersion', True);
reg.OpenKey('Policies', True);
reg.OpenKey('System', True);
reg.WriteBool('DisableTaskMgr', off);
reg.CloseKey;
end;

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