This project offers OpenLDAP for Windows. It supports: OpenSSL, Berkeley DB, GSS API, Cyrus SASL and ODBC. It includes most of the features available on Linux. It works out of the box so no additional software is needed.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.