Permissions in NT 4.0

Nope. Just granting the ability to view a file allows you to copy it and being able to modifiy opens the door even wider because you can still screw with the information enough that it will be unusable without deleting.

Yes, but your file or folder must be in an NTFS partition.
Right click on file or folder. Choose Properties.
Click security tab, click Permissions.
Choose user or group to which you want to grant access. In type of access choose Special DirectoryAccess or Special File Access. In the list that opens, you can then choose each permission individually (Read, Write, Execute, Delete. In your case, you would allow them just write permission, but not read and delete.
If you allow them read permission, then of course they would be able to read and copy this information.

Unforunately, no. In order to modify files and folders, a user needs the "Change" permission. The "Change" permission includes the "Delete" permission.

Actually, this was not an oversite on Microsoft's part, but has to do with the way applications open and change documents. When you open a file, a copy is made of the file. Usually, it has a .TMP extension. You now have the original file, and a copy of the original. When changes are made, they are made to the copy. When you save the changes the original file is deleted, and the .TMP copy is renamed with the name of the original file. Therefore, you need the delete permission in order to modify files and folders.

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