This property affects the filenames and file comments for items added to a zip file. It does not affect the global zip file comment, which cannot be written as Unicode.
Each file/folder is examined individually.
This property affects the behavior of the DefaultTextEncoding and DefaultExtraHeaders properties.
If NonASCIIOnly is used and no non-ASCII data is detected for a particular file, the standard text encoding will be used regardless of the value specified to the DefaultTextEncoding property and the Unicode, UTF8Filename, and UTF8Comment extra headers will not be written for that file.
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2