From the research I just did, it looks like the Change Journal is a catalogue or database or all transactions done in the file system. Also, the Change Journal is run on a per instance, so when an application requests that it intervenes and is used to search for particular things, it will start on demand. Obviously, the DLO Agent is unable to start it so I either have a problem on this machine or there is something wrong with our version of the DLO Agent.
I started the MS Indexing Service (since it uses the Change Journal) which is working fine in itself, which would indicate that the DLO Agent should be working as well. However, it still generates the same error when restarting it.
Any suggestions?