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The XcdErrorCantCreateDir constant is a value indicating that a directory could not be created. This error typically occurs when the directory specified in the ExtractDirectory property cannot be created, or when the complete path for a file to be extracted cannot be created.
Make sure your application has the appropriate file permissions to write on the destination storage device. Also, only one directory specified in the UnzipToFolder property will be in order to attempt to extract files into the destination directory. (See the UnzipToFolder property topic for more info)