This listing is for a LearnKey Multimedia CBT (Computer Based Training) CD-ROM for MCSE Exchange Server 5.5, specifically Volume 1 of 5. This CD-ROM provides comprehensive training material designed to help users prepare for the Microsoft Certified Systems Engineer (MCSE) certification related to Exchange Server 5.5. It's an excellent resource for anyone looking to learn about or refresh their knowledge of Microsoft Exchange Server 5.5. The disc is in good condition and ready to be used. Please ensure your system meets the minimum requirements listed on the disc (486/100 mhz, Double Spin CD-ROM, 8MB RAM, 3MB Disk Space, 640x480 (256 color), Windows 95 or NT 3.51 or later, 100% Sound Blaster compatible sound card).