Microsoft Knowledge Base Article 301198 contains the following summary:
This step-by-step guide describes how to share folders on a Windows 2000-based computer that is part of a domain.
For example, assume that you are the administrator of a Windows 2000-based domain. You get a call from Fran, the manager of your Accounting department. The Accounting department is working on a major project and wants to have a central location to save their working files. The Sales department needs to be able to read these files, but should not be able to edit them or add any new files. You need to create a shared folder on the Windows 2000-based file server to allow the Accounting and Sales departments to access the data.