Question

How can I allow users to write to files but not delete them?

Windows Security, File permissions, Group permissions

I created a group in Windows Server 2003 called "Staff". I want to give this group permission to write to a file, (for instance edit a Word file and save it back to the same file) but not to move or delete files.
I have three boxes checked in the security tab of the properties window for the files for this group. Specifically, the Read & Execute box, the Read box and the Write box.

When a Staff member tries to save the file after editing, it comes up as "Access denied". I should note that I know this file is not open as "read only."

I have tried looking at the effective permissions for a staff member. This has the Write box ticked as I would expect.

If I check the Modify box in the security tab, then it allows the save. But then also allows the file to be deleted.

Am I misinterpreting what is meant by Write and Modify in this context? How do I allow users to write to but not delete files?

Go into "Advanced Settings" click on your Group, click on Edit, and tick the Delete box under Deny