File was slower by at least 10 times slower (it was ~10 years ago). Second thing, for example it didn’t work with compound objects. Especially for things like

File was slower by at least 10 times slower (it was ~10 years ago). Second thing, for example it didn’t work with compound objects. Especially for things like word embedded in excel, etc. Similar for XML-based types, zip-based, … Plus rules aren’t very flexible - I’d used lisp-like language to describe detection patterns - that made it quite flexible in describing complex detection logic.