This project was a case study of the use of a learning management system (LMS) within a New Zealand secondary school. The interpretive study aimed to find out why the LMS was purchased, to examine the extent and patterns of its use within the school, and to identify factors that may be impeding or enabling its use. Data on user perceptions of the use of the LMS were gathered from students, teachers and administration staff through questionnaire, individual interviews and focus group interviews. User login data from LMS records were also used. The study findings indicate that KnowledgeNet is currently being used predominantly as a content management system rather than a genuine LMS. Usage of the system within the school is moderate to high, especially with student users, but students perceive they are not using the system adequately. The findings reveal a number of impediments to the effective use of the system within the school and make several recommendations as to how these issues might be addressed. The study also makes recommendations to address the shortage of research on LMS implementations in NZ to help guide schools in the choice and implementation of LMS.