The OU Viewer server is a J2EE compliant web application, which integrates into existing eBook Centre of Open University of Hong Kong seamlessly to provide controlled content access to all students and staffs of OUHK. It combines browser and server side technology for optimal performance, maintains same level of security for digital right management including, but not limited to, prohibiting copy-and-paste, printing, viewing web source and copyright license control. The full-text search engine is also included for intra-book full-text search with implicit Traditional-to-Simplified Chinese conversion.

Multi-Language Dictionary Content Extraction and Index Builder is a Java-based application to extract web content of pre-defined headwords and build the index for the Portable Learning Machine. A corresponding C++ search engine is also developed for the Portable Learning Machine use.