ENat for MSN Messenger 

ENat for MSN Messenger makes it possible to talk with anyone using MSN Messenger voice chat or video chat even when behind NATs where attempts to talk using MSN Messenger voice & video chat usually fail. It also enable file transfer when behind NATs.
msn messenger windows messenger nat voice chat video chat file transfer internet talk chat communication plugin plug-in add on

FilePocket 

FilePocket is a new type of application that allows you to store and distribute files on the Internet. With FilePocket you can quickly choose necessary files and publish them on the Internet.
share files backup files upload files share pictures share video online storage distribute files publish files