SharePoint is a web-base collaboration and document management platform from Microsoft. It can be used to host web sites that access shared workspaces and documents, as well as specialized applications like wikis and blogs from a browser. SharePoint does not intend to replace an entire file server (e.g., an imposed 2 gigabyte file size limitation). SharePoint functionality is exposed as web parts, such as a task list or discussion pane. These web parts are composed into web pages, which are then hosted in the SharePoint portal. SharePoint sites are actually ASP.NET 2.0 applications, which are served using IIS and use a SQL Server database as data storage backend.