Can ALZIP extract .exe file like Universal Extractor http://www.legroom.n.../software/uniextract
No. That's actually a difficult one to add — not because it's techinically difficult, but because it's likely to cause confusion for people. You drag & drop an EXE into ALZip... Well... What next? Do you compress it? Do you try to list the contents? Add an option specifically for EXEs? No matter what you do, you end up with some kind of messiness.
For someone like me or you, it isn't a problem. But what about our technically challenged friends and relatives that have a hard time figuring out how to open a file, much less even coming to terms with what the difference between a compressed EXE setup package and a pure executable EXE are? They represent the largest portion of people out there.
Universal Extractor is focused on extracting setup packages, which isn't the job of a general archiver. However, setup packages are just a very special kind of archive. Therein lies the irony and the problem.
However, this is on my list of things to put into the Wish List for ALZip (ever since I first saw Universal Extractor - I love the program and use it regularly). I want to get some more done on the command line first before I start pushing for that though. I need to figure out how to make things as seamless and intuitive as possible before I take it to the PM and lead developer for consideration though.
The general problem that you've inadvertently touched on is the "breadth" vs. "depth" problem for an application. You need to focus on a direction, but not ignore the other. This is especially important for the smaller developers out there. Microsoft has a lot of resources, and can attack both directions. Windows Media Player is an excellent example. It's not just an audio player or video player — heck, it's a development platform! Similarly, you can see this issue in the difference between consumer level and professional level audio and video software. The professional level stuff often lacks some breadth, but has very great depth.