RudeCGI� C++ CGI Library Tutorials - http://www.rudeserver.com/cgiparser/download.html
cgic: an ANSI C library for CGI Programming - http://www.boutell.com/cgic/
jwCGI a C++ library for CGI programs - http://sourceforge.net/projects/jwcgi/
libdodo is a c++ cgi framewok. It provides wide abilities for cgi - http://webscripts.softpedia.com/scriptDownload/libdodo-Download-26712.html
html++ CGI Class Library - http://www.dcmicro.com/htmlpp/