When you send a file as a shared attachment, a Document Workspace site is created for the attachment in the Microsoft Windows SharePoint Services site that you specify. The Document Workspace carries the same name as the attached file.
Note If you attach more than one file, the Document Workspace carries the name of the first file in the list of attachments.
As the sender of the shared attachment, you become the administrator of the Document Workspace, and all the recipients become members of the Document Workspace, where they are members of the contributor site group.
Recipients can open the attachment, or they can follow the link that is added automatically to the message. The link goes to the home page of the Document Workspace, where a copy of the e-mail attachment is stored in the Shared Documents library.
If the e-mail attachment is a document or Single File Web Page (MHTML) from Microsoft Office Word 2003, Microsoft Office Excel 2003, Microsoft Office PowerPoint 2003, a document from Microsoft Office Visio 2003, or an XML file from Word or Excel, members of the Document Workspace can open and work on their own copy of the attachment while the Microsoft Office program that they're using to edit the document periodically gets updates from the Document Workspace. Members can also save their changes to the Document Workspace copy.