Enabling the Discovery Mode option allows ActiveSync to:
1. Create a new asset based on the Discovery XML found in the path (i.e. \\mfiles\watchfolder\)
2. Seek in the root of the path for a file (e.g. 5245.MXF) named as the XML file (e.g. 5245.XML)
3. Link the found file to the asset as a metafile