http://spdvk.codeplex.com/
"This is a solution providing Estonian Document Exchange System (http://www.ria.ee/dokumendivahetus) integration for SharePoint 2007 (MOSS 2007 and WSS 3.0).
The solution consists of three SharePoint features and is packaged using SharePoint Solution package format (.wsp file).
In general, the solution allows users in SharePoint 2007 to:
- Send documents to other Document Management Systems (DMS) from SharePoint through DEC
- Receive documents from other DMS to SharePoint through DEC
- Archive sent/received messages
- Map metadata from DEC messages to SharePoint documents (listitems)
- Hold DEC intitutions and recipient information