I added Browzar yesterday and it has already attracted
a swarm of negative comments and links.
The two main complaints are: 1) it is
adware, and 2) it doesn't
do its job well.
Contrary to the blog postings above, there is nothing to prevent you from typing "www.google.com" into the URL bar and landing in Google's homepage, then perform your search from there. The only thing that is rigged is the search box found at the top-right hand corner of the UI, which is hardcoded to land in Browzar's preferred search engine (where they make some ad money, presumably).
I also could not replicate Scott's experience with Playboy.com. On the machine where I tested with some sample sites (including playboy.com), nothing was left behind. Of course, it is not fullproof protection (since the data are written to disk in the first place and deleted later), and one cannot refute the claim that a determined adversary will be able to recover the deleted files and data with a little effort.
So my dilemma is this: Browzar does appear to be a functional (though terribly simplistic) IE-based browser that does what it says it does i.e. leave nothing on the machine on which it is run (in the "your technically untrained daddy won't be able to recover the information" sense). It doesn't write any settings as far as I can tell. However, it is a little sneaky in that it directs your search box to its preferred search engine for making some ad money, which they don't tell you explicitily. But one can argue that you don't have to use the search box.
I am running a poll for 3 days to get your preference. If the majority thinks it should be removed, then I will do it when the poll is closed.