Before 2.0 Serva was a multi-server that could be configured as a regular PXE server for let say network installations
of Linux distros. These PXE configurations basically used TFTP and DHCP services.
Since version 2.0 Serva adds the services of BINL (Boot Information Negotiation Layer) that is a Microsoft protocol
(kind of a DHCP extension) required when network installing “Microsoft OSs”.
The addition of this protocol allows Serva the easy creation of a “Microsoft Installation Server” (like MS RIS or MS WDS)
from where a network booting PC can choose the MS OS we want to network install as soon the PC gets booted…
This means being able to network install any MS OS from Win 2000 to Windows 8 without using any Microsoft tool, and
without requiring the modification of any previously existing DHCP infrastructure.
Serva can help you when you just need a quick FTP/HTTP server or now getting your MS network installs running
under 5 minutes! This last feature is what makes "the big difference" about Serva 2.0.
All of this can be read at Serva’s how to:http://www.vercot.com/~serva/howto/WindowsPXE1.html
or also at this handy summarized tutorial explaining the author's hands-on experience:http://www.rmprepusb.com/tutorials/serva
Please let me know if there’s anything that needs further explanation