Short description of EssentialPIM Pro Portable 3.71: EssentialPIM Pro Portable is the advanced version of Personal Information Manager that will handle all your calendar, contact, to do and notes needs in an easy- to- use, manageable form. EssentialPIM Pro Portable is U3-compliant and works straight from your removable media, whether you use a USB flash drive, compact flash card, or even a good old floppy.