Microsoft Knowledge Base Article 818212 contains the following summary and introduction:
SUMMARYMicrosoft Office XP programs are supported in a clustered server environment. However, failover is not always seamless. Some user interaction may be required when your computer shifts to the failover server.
Clustering: Linking individual servers physically and programmatically and coordinating communication between them so they can perform common tasks.
Failover: A process that automatically shifts its workload to another server to provide continuous service if any one server stops functioning.
INTRODUCTIONThis article describes the expected Microsoft Office XP behavior and the optimizations that are required when you use Office XP in a clustered server environment.
For more information about Windows 2000 clustering technologies, visit the following Microsoft Web site: