Microsoft Certified Systems Administrator (MCSA 2003)

Exams on networking systems (2 exams required):

Exam70-290
Managing and Maintaining a Windows Server 2003 Environment

Exam70-291
Implementing, Managing, and Maintaining a Windows Server 2003 Network Infrastructure

Exam on client operating systems (1 exam required):

Exam70-270
Installing, Configuring, and Administering Windows XP Professional

Elective Exam (1 exam required):

Exam70-620
TS: Configuring Microsoft Windows Vista Client

Microsoft Certified Technology Specialist (MCTS)

Exam70-648 (1 exam required):
upgrade from MCSA 2003 to MCTS