Software for MPN estimation?

[CURTIS at UTMSI.ZO.UTEXAS.EDU]

A program in BASIC that can be used to calculate MPNs and 
confidence intervals is found in:
Hurley and Roscoe (1983) J. Appl. Bacteriol. 55:159

We use it routinely with good success.  It is particularly attractive
because one is not constrained by a fixed number of dilutions, a
fixed number of replicates at each dilution, or dilution by a
fixed amount. It also provides confidence intervals about the estimates.

Curtis Suttle
Marien Science Inst.
Univ. Texas, Austin