Cai dat:
  - Nhap phai tren file "Camtasia9.exe" -> chon "RunAs Administrator".
  - Agree ...Next - Yes - Finish.
  - Neu Camtasia tu chay sau khi cai dat => Close chuong trinh.

Dang ky su dung:
  - RUn the "DangKy.cmd" by "RunAs Administrator"

Luu y:
  - Khi co thong bao Update => click No.