...sorry for being out for a while.
Thanks you very much guys.
There is no .bin file on the bios diskette but .FL1 instead, here is full list of files:
Content of config.sys:
Only updtflsh.exe works.
I booted from hdd formated with /s switch and updtflsh.exe works in such dos environment but detects dead battery and says: press any key to reboot
It also works in win98 dos with the same result.
I installed w2k finally, install takes about 2 hours with 40% of fragmentation, system files are spread throughout the disk, defrag gives very good results (except system files) and finally w2k runs almost fine, I even got 54 updates from MS (unbelivable). I substitute IE with K-Meleon browser and it works great. But anyway it now takes more than a half of my hdd (250Mb of the updates) and no way to insall office2000 on that 2Gb hdd. At scrap yard they said that recycle all hdds less than 20Gb and found the smallest at 30Gb, bios doesn't see it at all (I would be quite happy to get at least 4Gb out of 30.)
BTW I used to own ThinkPad i1450 with 4Gb hdd. I bought it in 1999 with still win98SE then upgraded to w2K and worked with it up to 2008! It had 64Mb of ram and Celeron 300MHz. I had full Office 2000 (then 2003) + Adobe suite with Photoshop, Illustrator etc, I had even QuarkXpress on just 4Gb hdd. In 2008 I added another 64Mb of ram and managed to upgrade to XP!...cannot believe now.
From those times I remember using of DM (disk manager) which allowed to work with large disks. I downloaded Ontrack's DM and tried to treat the hdd in my P4 machine. Have no idea what's wrong but it analyses the disk then gives a few options and exists in few seconds (cannot even read what it offers) with "thanks for using DM. Your ramdisk is D: Press any key to reboot"
Nothing works from the ramdisk...
Anyway that old bios sucks... I always have latest one on my machines...
Maybe indeed rename it to .bin and try another flash utility or even try linux environment? ... seems over my head at the moment.
BTW AntiX is great I used to try it. But its iso is about 700MB so I think about DSL 4.4.10 or SlitaZ or Puppy 2.34. Tried already install with unetbootin with no luck: grub4dos cannot find its menu.lst on hdd and doesn't even see the hdd itself (device doesn't exist). That's again about the bios I think.