Error when installing Daemon Tools Pro Advanced version

Hello, I need to solve a very crucial problem; I am unable to install Daemon Tools Pro Advanced version in fact the latest version from the official site. Whenever I tried to install, it shows error that says something about "verify license" window and then an error message appeared on the screen: it's Trail version that I am trying to install.
Kindly help me out from this error. For your information, my OS is Windows 7 32-bit.

Error:
Activation checking error.License activation is required for product usage.
