UHARC

Uharc ( Uwe Herklotz ARChiver ) is a proprietary data compression program for DOS and Microsoft Windows . In addition, there are several programs that provide a separate graphical user interface. Uharc is free for private and non-commercial use, commercial use requires a fee-based registration. Neither the source code, nor a file format or algorithm description are published. Files compressed with Uharc have the extension .UHA . The last version 0.6b is completely incompatible with the previous version 0.4.

Uharc compresses (heavily depending on the type of output data) around 10% more than RAR and 1 to 2% better than 7-Zip in 7z mode. On the other hand, Uharc is a little slower, but can still be used in practice compared to the strongest experimental packers such as WinRK in PWCM mode, PAsQDa or DURILCA .

Uharc can only pack files up to 2 GB in size.

Web links

• ftp://ftp.sac.sk/pub/sac/pack/uharc06b.zip (464 KB). Current version 0.6b
• Official site of WinUHA with the last, current version "WinUHA 2.0 RC1 (2005.02.27) .exe" (1410 KB) (last accessed on November 17, 2011)
• UHARC / GUI GUI to UHARC
• Official blog about the FileCompress graphical user interface (Italian)
• Single file compression tests from maximumcompression.com (English)
• Compression test with multiple files from maximumcompression.com (English)
• How to use UHARC (English)