Installing licensed Thingworx

Hi,

I have already installed Licensed Thingworx 8.1 in my system.

2 days ago i was trying to install Trial version for some practice, but the installation method is completely changed,

there is a 'exe' file downloaded and installation was easy.

But my question is the same is applicable for even installing Licenced version or we should follow old method to install Tomcat, postresql etc manually?

please answer, if so, please send Document.

Regards,

Akshay