The newest (August 1, 2003) release of the NCBI C++ Toolkit is available at: ftp://ftp.ncbi.nih.gov/toolbox/ncbi_tools++/CURRENT/ It includes distribution archives for UNIX, MS-Window and Darwin. More release details are provided here: ftp://ftp.ncbi.nih.gov/toolbox/ncbi_tools++/CURRENT/RELEASE_NOTES.html