In the enterprise, documents are stored in many different repositories including enterprise content management applications, enterprise resource planning systems, customer relationship management systems, product life-cycle management systems, custom LOB applications, and file shares. It can be difficult for information workers who want to use the data contained within these documents to locate the documents and integrate them within their daily work. This session presents a complete architecture and sample code for integrating an external repository with MOSS 2007. The solution enables you to view and manage documents in an external repository through the MOSS 2007 user interface (UI). While some repository vendors provide web parts that enable document browsing and viewing, this solution goes far beyond these basic capabilities to provide a complete integration of the repository. Using this architecture, end users can create libraries in MOSS 2007 that include documents from an external repository without copying those documents into MOSS 2007. Users are also able to maintain the documents by using MOSS 2007 capabilities such as check-in, check-out, edit properties, version history, and document upload and download. The solution also enables complete integration of external documents with SharePoint workflows, list columns, task lists, and other libraries.