CCleaner is a tool for system optimization and privacy. Removes unused and temporary files and the registry of your system as well as traces of cleaning your online activities such as your Internet history and flash cookies. Contains a separate registry cleaner and potentially can be used to clean the functions deleted files and drive free space. Download Link: Portable CCLeaner
PuTTY is an SSH ,Telnet and Remote login Client. It supports the SSH2 protocol. portaPuTTY is a modified version of PuTTY that stores configuration data and session files instead of the Windows registry. Download Link: PuTTY Portable
FileZilla is a fast and reliable FTP and SFTP client. The program interface includes an easy to use tabbed window with the ability to drag and drop, bookmarks, search for files remotely, editing remote files, and a queue to manage the downloading / uploading. Internally, it supports the connection limit, the detection of keepalive, timeout, IPv6, SOCKS 4/5 and HTTP 1.1 proxy etc. Download Link: FileZilla Portable
Pidgin is an easy to use, multi-protocol instant messaging client with a tabbed interface, sounds, and more customizable items. Supports a long list of networks, including AOL, Yahoo, MSN, ICQ, Jabber and IRC, and 85 languages worldwide. A wide variety of plug-ins are available to add more features, including networking, security, interface configuration, and more. Download Link: Pidgin Portable
