This listing is for a used MCSE: Exchange Server 5.5 Study Guide CD-ROM from SYBEX Network Press. This disc is an essential resource for IT professionals studying for the Microsoft Certified Systems Engineer (MCSE) certification, specifically focusing on Microsoft Exchange Server 5.5. The CD contains supplementary materials for the study guide, providing valuable tools and content to aid in exam preparation. Please note this is a study guide resource and not the Exchange Server software itself. The disc is in good condition with minor signs of use. Perfect for collectors or anyone still working with legacy systems and certifications.