Product Key Explorer – Find over 500 popular software product keys instantly! Product Key Explorer displays product key for Windows, MS Office, SQL Server and more than 500 popular software products installed on your local or remote network computers. In order to install or reinstall Microsoft Office, Windows, or other commercial software, you must have access to a product serial key (CD Key) for that product. Product Key Explorer retrieves serial keys from network computers and allows to protect your company from having pirated software on your network.