It's not my credit anymore. All thanks to
yener90 and his easy like f... (no matter like what

) installer. Moreover my scripting abilities are such poor that you're pushed to watch this ugly WinRAR window instead of some nice looking gauge. Of course all repack can be done in background (inno's "runhidden" switch won't run but WinRAR has -ibck switch) but there are few minutes when nothing is happened on the screen so probably half of users will kill the setup by task manager
BTW: I realize that commandline 7zip would be better then WinRAR but I can't find any suitable switches for "repack all *.zip in all subfolders from 'nocomp' to 'lightcomp'". If you know some please post it to earn some credits if it'll be working