Hi, Following advice from Dave Abrahams and Aleksey Gurtovoy who were nice enough to have a look at the doc, I just uploaded to the Vault the first version of Msm and would be delighted to have as many people as possible have a look at it and give their opinion before I dare request a formal review. Msm offers an alternative to Boost.Statechart by implementing a relatively big subset of the UML State machine specification at high run speed and staying as close as possible to the beautiful Domain-Specific-Language described in the "C++ template metaprogramming" book. Tutorials and features can be found in doc/index.html. In doc you will also find the tutorials' code. Christophe _________________________________________________________________ Discover the new Windows Vista http://search.msn.com/results.aspx?q=windows+vista&mkt=en-US&form=QBRE