You don't have the option, the manager controls the download of the program you actually want and at the same time bundles the crapware. This is all over the various blogs, etc. about this practice.
Not all programs are included in this, but it is the thin end of the wedge.
If I want to download something, I only want to download that, not what they think I might want and I don't want to have to clean house after a download to get rid of the crap. So for me Cnet is history.