This document provides information about the Microsoft Certified Systems Engineer (MCSE) Messaging certification track. The MCSE program targets professionals with at least 2 years of IT experience and certifies skills in planning, designing, and implementing Windows server solutions. The messaging specialization track requires candidates to pass 6 core exams covering Windows server administration, networking, and design, as well as 2 exams on implementing and managing Microsoft Exchange Server 2003. The total estimated time to complete the program is 336 hours.