@Der Moloch:
Thank you too. My machines have only been infected a few times in nearly 10 years. One of them -years ago and the worst case- was when I had gone to Microsoft's Windows Updates website un-sandboxed, thinking that otherwise the updates wouldn't stick on my Windows xp laptop at that time. From there I surfed to another site, forgetting all about not being sandboxed...
Long story short, even after getting lots of help from an expert on a HiJackThis forum, in the end I had to reformat. (I had just deleted all the backups I had as that system was full, planning to start from scratch again with a system backup a bit later, so I had no backup.)
Sandboxie must have prevented my laptops from getting infected many times without me even knowing it, and I always felt safe surfing while sandboxed. I realized SB did not prevent someone from looking at the content of my notebooks, strictly speaking, but I never worried much about that slim chance. As long as I would not get infected.
I still think Sandboxie is very

.