True if long file names are used when you save or publish a complete or partial presentation as a Web page. False if long file names are not used and the DOS file name format (8.3) is used. The default value is True. Read/write Long.
Remarks
If you don't use long file names and your presentation has supporting files, Microsoft PowerPoint automatically organizes those files in a separate folder. Otherwise, use the OrganizeInFolder property to determine whether supporting files are organized in a separate folder.