WinPenPack is an applications environment of Free software which are modified for being run and used from an USB drive, without the need of any installation. The software included in WinPenPack does not require any installation on host computer and also they do not modify any settings in the host computer. WinPenPack Flash Essential is a good pack of Graphics, Multimedia, Internet, Office, System, Security, Development and Utilities bundled into a single zip file.
WinPenPack can be used both from USB drive or hard disk and in both cases there is no need to install the applications. Some of the popular application that comes with the essential pack are Open Office, Sumatra PDF, Sticky notes, Filezilla, Firefox, GIMP, Thunderbird, Pigdin, Disk Cleaner, 7Zip and many more. You can check the entire list of applications here.
After inserting the USB drive into a free USB port of host PC, user will have immediately available a collection of pre-configured and ready to use programs, subdivided in categories and executable through a practical menu, analogue to Windows menu Start.