3.41 (2004–12): adds support for Linux .Z archives like GZIP and BZIP2. New options include storing entire file paths and restoring compressed NTFS files. 3.50 (2005–08): adds support for interface skins and Windows XP Professional x64 Edition.[27] 3.60 (2006–08): adds multithreaded version of the compression algorithm, which improves compression speed on systems with multiple dual-core or hyper-threading-enabled CPUs.