Internet Explorer plugin allowing to view contents of ZIP and RAR archives and open any file inside without downloading the whole archive. File is opened with your default software associated with its extension.
After Web Archives Viewer is installed, "Open in Web Archives Viewer" item appears in IE context menu (context menu shows up on right-clicking any link). If the current link is a ZIP or RAR archive, dialog with the list of compressed files appears. Double-click or "Enter" pressed on the file you are interested in will run it with a default application associated with its extension (e.g. Notepad for TXT or MS Word for DOC ). Traffic is used only for the part of an archive containing the opened file. So the time spent for its opening is less than if it were compressed.
Both ftp:// and http:// protocols are supported. If a link leads to an FTP, the dialog presents a simple FTP explorer allowing you to view contents of the archive as it were a folder tree. Limitations - no support for continuous and multivolumed archives.