Optionally let us add hash functions like md5 to the right click context menu for all files like HaoZip does. This is a very useful feature and lets me keep my context menus clean if I don't need a separate program in their to do file integrity...
Include a more visual representation that the archive was created correctly by telling us its integrity was verified upon creation and display the related md5 sums or whatever. Please make it an option to automatically verify the integrity of...
Allow us to manually exclude certain file types from being compressed. Most videos and executables cannot be compressed at all and are a huge waste of time. Also add a smart file extensions feature option to do this automatically.