The misleadingly named PIM is an adequate, but uninspiring archiving tool amid a sea of more capable multifunction utilities. However, what this program lacks in features, it makes up for in the power of its compression algorithm. It doesn't offer much in the way of an interface, relying on window menu items or an incomplete set of shortcut keys to access its functions.
PIM delivers on its promise of creating smaller compressed files (compared with a ZIP file), using its proprietary format, and it opened ZIP files as expected. Its minimal options/settings window lets you easily associate the program with the different formats it can handle, However, its complete absence of Windows Explorer context menu integration was noteworthy. Also missing was any form of help file to illuminate the simplistic interface or the proprietary file format.
The program seemed stable enough, but when attempting to add files or folders to an archive by dragging them onto the program's window, an error message was displayed, followed by the closure of the running program--apparently, the only way to add files or folders is via the program's menu items or keyboard shortcuts. With no usage restrictions, this free software installs and uninstalls cleanly. While PIM performed its primary functions as advertised, the questionable usability, single proprietary archive creation format, and lack of features compared with similar utilities makes it suitable mostly for users with very specific needs--namely, for a small, simple utility to create smaller compressed files than the other guys.