Jeff, thanks for that pointer. I was unaware of it. Though it does show the Intel compiler that I'm using under MSVC6 is fully compliant with all the relevant libraries. It even passes all bar 2 of the Spirit tests.
So there must be something associated with the environment on this machine (Win2K). Another machine in the office running XP with VS 2003 does a clean compile, but VS 2003 isn't available to this project. Though, if push comes to shove, I might move the compiled libraries across along with their include files (that would need approval from QA though).
There are two issues here: the compiler which as you say is a very capable and conformant one, and the standard library it's forced to sit on top of, which is highly non-conforming. The results on our test page would most likely have been run with Intel sitting on top of VC7.1 which is a whole other ball game. The errors you are seeing: C:\Libraries\boost_1_33_0\libs\program_options\build\../src/options_description.cpp(378): error: too few arguments for class template "std::reverse_iterator" find(reverse_iteratorstring::const_iterator(line_end - 1), All stem from not having a conforming std lib to work with. They're probably work-roundable, but it's a lot of work (at our end) for what is an obsolete std lib that's no longer even supported by MS. You may have better luck if you're able to use STLport, but frankly if you can't get approval for VC7.1 which is just so much more stable and reliable than VC6 (all IMO of course), then I'd be surprised if you can get approval for STLport either. :-( So I'm afraid you're likely to be limited to the sub-set of Boost that works with VC6, sorry, John Maddock.