Message Report (LegalNotice)

Say a Pc technician is in a hurry and has just finished servicing serveral pc/s, instead of calling every customer to explain his/her modifications he performed, he uses Message Report. When Run on a system is edits the registry and adds the "LegalNotice" command to the Winlogon file, so when the customer starts his computer next time he sees a nice little windows message box with helpful information about what the technician did. It runs only once then deletes it self along with all the temporary files that were added to the customers PC.