Naming web player

When I build to the web player I only get an option to select a folder but not to name the build. In an older version of unity I remember being able to name the build. I know you can rename it after but you also need to change the name of the html file created. It would be nice if I could do the naming with the build, am I missing something in the preferences that can change this, I’m using the free version of unity.
thanks

You can create custom template to achieve this (and more!).

Official doc: http://unity3d.com/support/documentation/Manual/Using%20Web%20Player%20templates.html

Unofficial (and more complete): http://www.unity3dhelp.com/Manual/Using%20Web%20Player%20templates.html