Microsoft Knowledge Base Article 911604 contains the following introduction:
Distributed File System (DFS) replication uses the Active Directory directory service to store configuration objects. When you use Active Directory, you can delegate user rights more exactly. The DFS Management feature provides high-level delegation support. This support lets you grant users the ability to create a replication group. This support also lets you grant users administrative rights on a replication group that has already been created. This article describes how to directly modify the permissions on the configuration objects for each replication group.