[en] The 'IBA DataFurnace v2.1' code based on a simulated annealing algorithm was released in April 1998. It is capable of handling multiple RBS, EBS and ERD spectra simultaneously and self-consistently. The DataFurnace automatically solves the general inverse RBS problem: Given the spectrum what is the structure? All practical methods published up to now have depended on an analyst guessing what the spectrum means, with the help of more or less sophisticated tools of various types. There is a large class of relatively simple samples for which this approach works well; however, many samples are not conveniently simple and are either very time consuming to analyze by manual methods or even inaccessible to them in a reasonable time. We give examples of current problems which have generated large numbers of complex spectra which our new code has solved readily. The algorithm is general, readily extensible to other techniques such as NRA or PIXE, and can easily accommodate stopping power or multiple/plural scattering corrections. We can also take advantage of the Bayesian structure of the formalism to calculate confidence intervals of the solution obtained. We give examples of all of these