I've been receiving an error message with Word 2007 for a long time.
If I click on a document in a folder I receive this error message, then Word will open & I need to find my file that way rather than just clicking on it in my documents.
I think the DCOM error goes with that maybe?
I'd hate to uninstall and reinstall being its an older ver of Word, I remember asking about it here when I needed help years ago to install it from a disk.