winPenPack Flash Essential [.zip] is an applications environment of Open Source Softwares, modified for being run and used from an USB pendrive, without need of installation. It is a really self-contained environment, within programs, .xml and config files, documents are homogeneously integrated. Portable softwares included into winPenPack does not need to be installed, does not write their settings into host PC, and can be easily carried between multiple computers through any external device, as removable hard disks or USB pendrives