Yes, it is full source code of Filseclab Personal Firewall, this is undoubted, it includes XFILTER.EXE (GUI) + XFILTER.DLL (SPI) + XPACKET.SYS (NDIS HOOK for Windows NT/2000/XP/2003) + XPACKET.VXD (NDIS HOOK for Windows 95/98/ME), the source code contains the detailed explanatory note.
2. WinpkFilter
WinpkFilter is a high performance packet filtering framework for Windows 9x/ME/NT/2000/XP that allows developers to transparently filter (view and modify) raw network packets with minimal impact on network activity without having to write low level TDI or NDIS driver code. DetailsDownload trialBuy now ($95.00) Find similar
Vendor: NT Kernel Resources