Thank you all so far, I will investigate, how I can simplify my state machine and reduce the number of events. Damn, I spent 1 month on that machine and now I have to change it... On linux there is no problem with that. Okay, the memory exceeds 1 GB while compiling my boost.msm based library. But it works fine! The problem what remains is to compile the stuff for windows. I have already just test one thing: Cross-compilation of my boost.Msm state machine on linux for windows with mingw32msvc-g++. But already doing this produced some errors: *../src/TransportLayer/Statemachine/Master/CStateMasterHandshaking.hpp:33: error: class ‘CStateMasterHandshaking_’ does not have any field named ‘BaseStateMachineFrontEnd’ ../src/TransportLayer/Statemachine/Master/CStateMasterHandshaking.hpp:33: error: no matching function for call to ‘BaseStateMachineFrontEnd<CStateMasterHandshaking_>::BaseStateMachineFrontEnd()’ ../src/TransportLayer/Statemachine/Master/../Common/BaseStateMachineFrontEnd.hpp:48: note: candidates are: BaseStateMachineFrontEnd<TYPE>::BaseStateMachineFrontEnd(EventQueue&) [with TYPE = CStateMasterHandshaking_] ../src/TransportLayer/Statemachine/Master/../Common/BaseStateMachineFrontEnd.hpp:26: note: BaseStateMachineFrontEnd<CStateMasterHandshaking_>::BaseStateMachineFrontEnd(const BaseStateMachineFrontEnd<CStateMasterHandshaking_>&)* I think, the MSVC-specific cross compiler is responsible for this error. I don't now, how to continue with this problem. At the worst I have to change the state machine completely..... Thanks so far, Rafael -- View this message in context: http://boost.2283326.n4.nabble.com/Boost-MSM-cc1plus-exe-error-out-of-memory... Sent from the Boost - Users mailing list archive at Nabble.com.