Extra settings like dictionary or word size were left alone. Deflate64 and other methods are not universally compatible, Windows XP’s built in ZIP being one example which won’t recognize non Deflate ZIPs.įor the Maximum compression tests each archiver was set to the best compression format it had to offer, and then setting its level to maximum, the method was changed if we believed if would improve performance. The compression method was Deflate, this is the standard method for ZIP and the most compatible. Things like dictionary and word size were left at defaults as it would take huge amounts of time to test every single setting. The compression level in the ZIP test was simply set to the highest available in each archiver. Unarchive test #2: Decompress the VMDK file from Archive test #2.Īll 5 tests were run once for ZIP compression and once for Max compression. Unarchive test #1: Decompress all the files from Archive test #1. These are PDF, XLS(X), CSV, DOC(X), TXT and RTF files. It’s a complete mixture of file types and they range in size from a few bytes up to 100MB.Īrchive test #2: A 1.91GB single VMDK virtual image from Microsoft of Windows XP.Īrchive test #3: 129 documents totalling 200MB. The extraction tests were run from one HDD to another.Īrchive test #1: 20,196 files with an overall size of 2.54GB. The operating system is Windows 7 64-bit and 64-bit archiver versions were used if available for download, some others install and run 64-bit versions automatically. WinUHA has not been updated since 2005, UHARC not since 2007.Įach test was run on an Intel Core Quad Q6600 CPU 2.4GHz with 4GB of DDR2 RAM. Development seems to have stopped for StuffIt, KGB Archiver and TUGZip, none have been updated since 2009 or earlier.FuzeZip and jZip are other archiving tools with issues relating to adware. IZArc has gained a bad reputation of being bundled with adware and also appears to offer some you cannot opt out of.ZipGenius has never been updated to fix a known issue which renders the right click context menu useless and in many cases crashes Explorer.Some archivers you may know of were not tested for various reasons. The new RAR5 format introduced in WinRAR 5.0 improves many areas of the RAR format, including decompression speed, security and larger dictionaries for 64-bit versions to help improve the compression ratio a bit further. Recovery records also help with corrupt archives. This is probably the most popular shareware archiving program around, it’s fast, simple to use and RAR compression is better than ZIP and some other formats. A program which can UnRAR is essential if you download a lot because many online files are packed using WinRAR.
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