iSeries™ Access for Windows® Directory Update APIs typically are used for creating and configuring update entries that are used to update files from a mapped network drive. It is important to note that the Update APIs do not actually update the files, but rely on the Directory Update executable file to do this.
For example, files on the iSeries system might contain customer names and addresses. The files on your iSeries system are your master files that are updated as new customers are added, deleted, or have a name or address change. The same files on your networked personal computers are used to perform selective market mailings (by zip code, state, age, number of children and so on). The files on the iSeries system are your master files, and you want them secure, but you need to provide the data for work.
You could write a program that uses Directory Update APIs to create and configure update entries, which would update the files located on your networked personal computers.