A sandbxoing tool can be very useful which can be used to run unknown software without causing any damage to the system.
Sandboxes are useful but malware can detect if thereexecuted in a sandbox. If they can detect there in a sandbox it will halt its execution payload, as a sandbox cant hold memory for ever. A sandbox would cause degradation and would increase the memory footprint of FS. Good Idea! even if it was seperate from the modules with fsecure it would be a handy feature.
DeepGuard isn't a sandbox?