winPenPack (often shortened to wPP) is an open-source software application suite for Windows.

It is a collection of open source applications that have been modified to be executed directly from a USB flash drive (or any other removable storage device) without prior installation.

WinPenPack programs are distributed as free software, and can be downloaded individually or grouped into suites.

The collections are regularly distributed bundled with popular PC magazines in Italy and worldwide.

The winPenPack main menu can be executed from any removable storage device (including, and especially, from USB flash drives).