1. Automating Document Conversion is always a programmatic step. There is no OOB scheduling or event listener for DC. A good sample can be found here: Document Converter Framework Sample
2. If you convert using the object model, you will need the OOB transformer id's:
Docx: {6dfdc5b4-2a28-4a06-b0c6-ad3901e3a807}
Docm: {888d770d-d3e9-4d60-8267-3c05ab059ef5}
Infopath: {853d58f5-13c3-46f8-8b81-3ca4abcad7b3}
Xsl = {2798ee32-2961-4232-97dd-1a76b9aa6c6f}
3. Document does not work on old .doc-like files. It needs the new XML format of the Word 2007 files like .docx)
4. When configuring DC on your server, always start the Document Load Balancer Service before your Document Launcher service(s).
5. Some more lessons learned can be found here: http://raiumair.wordpress.com/2008/01/07/document-convertors-in-moss-lessons-learnt/
