BNalyzer requires the following files:

SSubTmr6.dll
COMDLG32.OCX
RICHTX32.OCX
COMCTL32.OCX
MSWINSCK.OCX
zlib.dll
VBPCAP.DLL (Included)

most of which can be found at: http://realityripple.com/software/deps/

As well as the WinPCap Library (version 4 recommended).

Help can be obtained at http://forums.realityripple.com/