I am working on a new CE 6.0 device and would love to use Boost's ASIO for our networking library. I attempted a basic app and added "#include " and received a load of errors about <cerrno> not existing (among other libraries). After a little research I came across a page in the MSDN (http://msdn.microsoft.com/en-us/library/tehass7h%28VS.90%29.aspx) which states: Unsupported Headers The device version of the Standard C++ Library does not support the following headers: *<cerrno> *<csignal> *<locale> Is there a #define list I need to get this to compile with these limitations? Has anyone got this running with these limitations? Thank You, Louis J. Landerman Software Engineer II GameTech International