P2P Filesharing utilities
USB flash drive portable filesharing utilities and applications
HFS Portable HTTP File Server
HFS is an open source Portable HTTP file server that can be used to securely send and receive or share files over the internet. It utilizes an easy to follow drag and drop file sharing system and is ready to use right out of the box. For advanced users, there is an advanced mode with additional file serving options.
Make uTorrent Portable - BitTorrent Client
Portable uTorrent? uTorrent is a super tiny peer to peer BitTorrent client with a ton of amazing features. The benefit of having a stand alone version is that it can be run portably direct from a USB flash pen drive. This might come in very handy for downloading torrent files while you are on the move.
Webdeling - The Easy Way to Share Files
WebDeling is a Free and Portable File Sharing tool. This File Sharing Application utilizes a simple drag and drop interface. Just drag and drop the files you want to share onto the window and your files are available from a web browser by typing the IP address of the local computer hosting the files.
Make BitComet Portable - BitTorrent Client
Portable BitComet? BitComet is another free BitTorrent client that can be run from a portable USB device (portable torrent). Among many features, it sports a download queue, the ability to set upload and download speed limits, resume simultaneous downloads, preview while downloading, multi section, multi peer, multi mirror downloading, and unicode support.
Dirhtml - Index HTML Generator
Dirhtml is a Free Portable App that can be used to create a web navigational index file (index.html) of all the files in a folder and it's subfolder tree. This index.html generator is a great asset for those looking to sort and present a directory of files for web navigation and sharing purposes. File names, file types, and output html name and title can be specified.
eMule Plus - Portable P2P File Sharing
eMule Plus is an Open Source Portable File Sharing or Portable P2P utility. It was created to improve upon the original GUI (graphic user interface) or eMule. In addition, Emule Plus supports file sizes up to 512GB, enables users to preview RAR archives and can update the server list from servers and clients.