Defensewall HIPS Rollback function

I have just been trialling Defencewall, I couldn't find exactly the answer I was looking for in the help files, actually they caused me a little confusion.

Am I correct in assuming all file, registry changes eg. listed in file and registry tracks are changes made by isolated applications? Would using the rolling back feature or deleting these entries do any harm to the real system
If I wanted to couldn't I just delete these entries after surfing the net, regardless of the entry.
Well in a nut shell, does DW behave similar to Sandboxie? ie. when I empty my sandbox all contents are deleted, no harm to the real system.

The warnings freaked me out a little

 

I highlight all and select delete - but I scan to make sure there aren't any downloads I want to keep, for example a document, a PDF etc, otherwise all will be removed.

If you've used a specific 'untrusted' program and it has updated, for example, you can 'allow' the updates in the file and registry tracks list, and remove everything else in the list.

If you have some settings that are always created, for example, in a portable browser, if I deleted everything in the list, I'd have to setup the configurations again. In this case, I would select 'rollback to' and I'd select the entry just after the browser configurations were completed.

If you're confident you don't have any downloads, and all your untrusted applications don't have any data you'd like to keep, then it's perfectly fine to delete all (note - I stress just make sure you scan the list for any important documents etc downloaded which you need to 'allow').

 

See this thread where I posted screenshots:
https://www.wilderssecurity.com/showthread.php?t=242971

And this thread:
https://www.wilderssecurity.com/showthread.php?t=246303&highlight=file registry tracks

 

thanks Saraceno, for pointing out those posts.
This is exactly what I wanted to know.
Very helpful, again thanks