ASSALAMULAIKUM umed hai sab kheryath se honge janab thu kashifkl aaj per ek naye masle k sath hazer hai thu ab thora pani aor relax hojaye . Thu janab masla ye hai ke me ne autocad 2007 install kiya tha jo sahe chal raha tha par mein ne window dobara ke is waja se thareban mein ne 3 martaba autocad 2007 instal kiya par wo thu ye mesage display kartha hai you must activate your product befor you can use it.