One day when i open a document in Ms. Word 2003, I get the message “This document could not be registered. It will not be possible to create links from other documents to this document.”
After searching using google.com and open some website, i have one solution. It’s only one maybe two step that i have to do. I open my services panel and activated my DCOM Server Process Launcher. And, it works, the message no longer show again when i open my document using word 2003.
That’s all. I hope it works to you too, if you have same problem. 
Nb:
Open services panel, just open Run (Start–> Run) and type services.msc then Enter.
Another Pratama 
I tried the above method to no avail. I ended up searching the entire PC (including hidden files and folders) for normal.dot and renamed that. After that, the messages went away. I suspect it was the default word template getting corrupted for some odd reason.
I inserted my office cd and selected repair/reinstall. This worked for me and I did not receive the error msg again. Liz.
hello