netboot is a tiny PXE-aware combined DHCP and TFTP
server. It can be used to bootstrap the Ubuntu or
Debian net installer. Other uses include assigning
an address to a network device like ILO to
configure it. It needs almost zero configuration.
innoextract is a tool that allows you to extract the contents of Inno Setup installers on non-Windows systems. It does so without running the actual installer using Wine.