Extract Method
Extracts the compressed file from the bzip2 archive.
procedure Extract();
Remarks
Invoking Extract decompresses the archive specified by ArchiveFile. The compressed file will be extracted, and written to disk.
If FileDecompressedName is set to a nonempty string the file will be written there. Otherwise the component will automatically set FileDecompressedName to an appropriate value:
If ArchiveFile ends in '.bz2', this filename, less the '.bz2' extension will be used.
If this condition does not hold, '.unzipped' will be appended to ArchiveFile.