Setting Share permissions so that no user in the LAN can delete a file

[isha]

I have a shared folder on the Server. I want to set the permissions in such a way that the users in the LAN can add files to this folder, can modify files but cannot delete the files once created. What share permissions and security permissions should be given to this folder?

Thanks

 

[Locoblade]

If you look in the NTFS permissions, under the advanced options you can allow users to create files/folders and also to append, but deny them the right to delete files/folders.