Pdf Xchange Viewer :: View and markup PDF files
Mozilla Firefox web browser :: Faster, more secure & customizable
DownloadThemAll :: DownloadThemAll! firefox extension (download all linked files on a page at once)
FileFormatConverters :: Office 2007 compatibility pack (open & save office 2007 documents in office 2000 & office 2003)
Strucad v15 :: Stucad v15 freeware (includes struwalker and 2d viewer) for viewing *.bsw files