In order to get this job, I need to develop a multi-user app using XML as the repository. Can I do this ???

I will have an XML file on a Novell server that each user (5 or 6 users max) will select customer specific records from to edit. I assume I will read the file into a local dataset for the changes. Then I need to save these changes back to the XML file on the server. If I just write the XML, it overwrites the file and anyone elses previously saved changes, so I can't do that. Can I select into my dataset the info I need, write it to a diffgram and use that in dataset2 for edits and then take that diffgram and merge it with the XML master file (the master file can be a regular or diffgram, it doesn't matter) ???

Any help or guidance would be appreciated. I'm not entirely certain this can be done, but I really need to figure out a way to do it.

TIA !!!

Best Regards,
Jace