Classic Macintosh UI Kit - 100+ elements inspired by the iconic, classic software
atool - atool is a script for managing file archives of various types (tar, tar+gzip, zip etc)
UI Movement - The best UI design inspiration, daily
patool - patool is a portable command line archive file manager
Random Resources - Resources for entrepreneurs
VMProtect - VMProtect Ultimate - All-In-One Solution For Software Licensing And Protection.