SharePoint - permissions for attached files

Hi,

i need to do this: different users can add attachments to an item, but not deleting the attached files that has added the other users, so one user can delete only the attachment added by himself
is there anyway i can do this in sharepoint? pls its urgent to me

thnx

no, i just want that one user not to be able to delete an attachment that is added by another user, even inside the same item.every user has rights to add attachments, and see attachments of the other users, but not to delete attachments that are not added by himself. im working with customer list

any idea?

no, i just want that one user not to be able to delete an attachment that is added by another user, even inside the same item.every user has rights to add attachments, and see attachments of the other users, but not to delete attachments that are not added by himself. im working with customer list

any idea?