Most POSIX calls are supported on Unix and Windows. For areas that are different (e.g. scanning directories) BOINC supplies some generic functions with implementations for all platforms. Similar code may be available from other open-source projects.
You can use Stackwalker to generate symbolic stack traces if your application crashes. These traces will be returned in the 'stderr_out' field of results.
The set of 'standard' DLL differs somewhat among 9X/NT/2000/XP. To avoid crashing because a DLL is missing, call ::LoadLibrary() and then get function pointers.
static/dynamic linking
The BOINC API is implemented in C++. Information about using it from C and FORTRAN is here. "; page_tail(); ?>