The loss of Microsoft's DOS FORTRAN compiler is an inconvenience, but should not be a major set-back to our modeling. It has at least prompted a re-evaluation of programming languages, which is good. Thanks, Brian. I know at least some of the IBSNAT/ICASA modelers have experience with object-oriented programming languages. For a lot of reasons, I hope the IBSNAT/ICASA network will start to use object-oriented modeling techniques. While FORTRAN-90 might be used for this, C++ is my personal choice at this time. I have recently sealed off a version of some C++ software that I am using for most of my modeling work. The software is called JanuSys and is available on the World Wide Web at: http://agrss.sherman.hawaii.edu/caldwell/janusys.htm JanuSys provides an object-oriented framework for modeling and simulating hierarchical systems. It helps organizes the creation of families of submodels (e.g., crop models) that can then be integrated to simulate agricultural systems. I am releasing the JanuSys source code now, and announcing it especially to the IBSNAT/ICASA group, because I have verified that (1) we have recreated the plant component of CERES-Wheat within the JanuSys framework, and (2) we can simulate any sole crop of wheat as a mixture of any practical number of competing sub-populations (i.e., the rule I have been using in the development of CropSys). Some in the IBSNAT/ICASA network may be curious how an IBSNAT model might look in C++. You are welcomed to download the source code and use it in any way you would like. Aloha, Robert M. Caldwell, [log in to unmask] Department of Agronomy and Soil Science 1910 East West Road Honolulu, HI 96822 Phone: (808) 956-6835; FAX: (808) 956-6539.