OS/A WASP was allegedly developed by Kamnev, one of the creators of ANDOS and maybe others, but any information about this operating system is scarce. I heard rumors that it had windowing interface "like in Windows".
Is there a way to find any info about it online?
I found a file by AltPro firm where they refer to 3(!) different windowing systems for BK: LIS-WINDOWS, OS/A WASP and AltPro Windows. It is unclear if they are completely different or different versions of one development. The text says, OS/A WASP includes "additional features", but has "different ideology, that differs not necessarily in the bad direction". Regarding OS/A WASP the text says it supports parallel processes and batch files, it also allows to switch between ANDOS and MKDOS operating systems without rebooting.
The disk image (BKMANIA972) also includes the demo version of AltPro Windows, although I was unsuccessful to make it work on an emulator.
Particularly, it says it would work under all the BK series computers with AltPro disk controllers. It claims AltPro Windows as of the moment supports only ANDOS operating system. It also says the AltPro Windows system loads before an operating system, such as ANDOS.
Splash screen of the demo version:
The screen suggests pressing a key to chose a drive letter. After pressing any key though the program exits to the file manager.
I also was able to find an HDD image which should include OS/A WASP but the image is intended for a real BK computer with flash drive and I was not able to mount it under an emulator: http://files.pk-fpga.ru/storage/bk-software/hdd_images/1Gb_CF_dump_2022_11_14.rar
Lis corp. seems to be a pseudonym of A.V. Grishin.