SendKeys.Send error.

[abhishek009]

I have an Application which uses SendKeys.Send function to

send CTRL+C and CTRL+V Keys. 

My operating system is

Windows Server 2012 R2. 

It sends the keys at first with no problem but then it says Access is Denied. Why ?

I have tried to use these two methods,

SendKeys.Send() 

and

 My.Computer.Keyboard.SendKeys() 

Both the functions giving the same Error at certain point.

Why it's not allowing me to send keys ?

Please Help me out to solve this error. Frustrated now :/

    ************** Exception Text **************
    System.ComponentModel.Win32Exception (0x80004005): Access is denied
       at System.Windows.Forms.SendKeys.SendInput(Byte[] oldKeyboardState, Queue previousEvents)
       at System.Windows.Forms.SendKeys.Send(String keys, Control control, Boolean wait)
       at Microsoft.VisualBasic.Devices.Keyboard.SendKeys(String keys)
       at WhatsApp_API_Sender.Form1.timercron_Tick(Object sender, EventArgs e)
       at System.Windows.Forms.Timer.OnTick(EventArgs e)
       at System.Windows.Forms.Timer.TimerNativeWindow.WndProc(Message& m)
       at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) 

Thank You!