Hello All, I have written a Windows Service which consists of a FileSystemWatcher monitoring some network folders, on creation of a new file or deletion of an existing, a record is inserted into a SQL table ( all works very well ). What I would like to have , is , the userid of the person who created (or deleted ) the file ( not the original creator in the case of a deletion - but the person who deleted it). As this service runs on a server I always get the userid of the server user (Administrator) I don't know if this is possible but thought I'd ask.