Good morning Igor.
I scanned it with:
1] QuickScanner (right click the file, choosing scan from the menu)
2] from the simple interface, selecting the map where the file is in, thorough scan, scan archives enabled
3] scanned from the simple interface, standard scan, scanning archives enabled, selected the map the file is in.
4] Scheduled a task in the advanched user interface.
As you can see in the picture it scans 2.1Mb, the archive is 1.59Mb. The rest are some non infected files I placed there to see if that would make a difference.
All first 3 scannings stop after finding the first infected file in the archive. The last one says it scanned all, but only detects one infected file. Let me know if you want me to try something or change a setting.