Ion: I think you are probably quite right...and I am just going to have to find another method. I guess I could always give a quick try, but testing would become an issue. How would I really know there are no broken edge cases... Nat: The CORBA implementation works this way. I submit an IDL file that defines my object model (OM) to a website. What I get back is a library (binary, no source) and a pile of additional source files. Together they implement my OM using CORBA. They have dependencies on Boost 1.31. When I link my application, I link in autogenerated COBRA libs, Boost 1.31 libs, and include in various places Boost header files. | I'm perplexed what "closed source" means in this context. Maybe it's | because I don't understand the CORBA environment. But if you have a | prebuilt CORBA executable using Boost version 1.31, I don't understand | how that would constrain in any way the version of Boost you yourself | choose? Thanks for the input, -d