BlackBox v2

[Shadow Delta]

Add in the stable version to the first post, and about the rar5 function too.. And Greatly impressed to see the support and contribution to the program by Razor

WinRAR Version 5.10

   1. Added extraction support for ZIP and ZIPX archives using
      BZIP2, LZMA and PPMd compression.

 7zip 9.20 - 9.30 alpha 

1. 7-Zip now can create multivolume SFX archives in 7z format.
2. ZIP, NSIS, HFS, AR support was improved.
3. 7-Zip now supports files larger than 4 GiB in ISO archives
4. Improved compression ratio in 7z format with maximum or ultra 
   level for executable files (EXE and DLL) that are larger than 16 MB 
   (improved BCJ2 filter).

So, Updating the include tools will be a good option, as it gives more support to better compression and faster extraction and bug fixes which might contribute to the stability of the program altogether.