I'm using CW 10.7 for the moment and it's a free version without evaluation period. When trying changing to 11.0 I can find no free version. Is the free version not available for 11.0??
The difference between the free 10.7 and the professional one was just a different license file installed, the binearies were the same. For 11.0 simply install the version, and it will be automatically in the 'free' mode if there is no valid license file.