Under Linux Red Hat 8.1 Beta the lastest ICC/IA32 0.78 works without problems with boost regex 1.29. I just copiend over the libs/regex/build/ gcc.mak and gcc-shared.mak files to icc*.mak and changed the compiler name within to icc. Under RH8.0 I had some problems because the compiler chooked about the header containing the declarations for some tcp/ip data conversion functions htons() etc.. I've never used the bjam stuff up to now. Perhaps you can do the same with the regex vc7.mak file as a starting point. with best regards, Bruno -- bruno@ic3s.de [Non-text portions of this message have been removed]