xcdSkippingReason

{

 xsrIncluded = 0,
 xsrFilesToExclude = 1,
 xsrSkipExisting = 2,
 xsrSkipNotExisting = 3,
 xsrSkipOlderDate = 4,
 xsrSkipOlderVersion = 5,
 xsrRequiredAttributes = 6,
 xsrExcludedAttributes = 7,
 xsrMinDate = 8,
 xsrMaxDate = 9,
 xsrMinSize = 10,
 xsrMaxSize = 11,
 xsrSkipUser = 12,
 xsrDuplicateFilenames = 13,
 xsrSkipReplace = 14,
 xsrUpdateWithoutTemp = 15,
 xsrInvalidDiskNumber = 100,
 xsrFolderWithSize = 101,
 xsrWriteFile = 102,
 xsrOpenFile = 103,
 xsrReadFile = 104,
 xerMoveFile = 105,
 xsrInvalidPassword = 106,
 xsrInvalidCRC = 107,
 xsrInvalidUncompSize = 108,
 xsrCentralHeaderData = 109,
 xsrLocalHeaderData = 110,
 xsrDescriptorHeaderData = 111,
 xsrCreateFolder = 112,
 xsrAccessDenied = 113,
 xsrCreateFile = 114,
 xsrRenamedToExisting = 116,
 xsrVolumeWithSize = 117,
 xsrCannotSetVolumeLabel = 118,
 xsrCentralHeaderNotFound = 119,
 xsrUnzipDiskFull = 120,
 xsrCompress = 121,
 xsrUncompress = 122,
 xsrNotLicensed = 123,
 xsrEncryptionMethod = 124,
 xsrCompressionMethod = 125,
 xsrMemory = 126

}

This enumeration is used by SkippingFile event. Explanations on each parameter can be found in that event's help topic.