Sweet! Do you have any pictures of it? I was thinking we could compare our Wangs...
Seriously though, I've had mine since about 1997 and when I got it, it would always display "Checksum error on extended CMOS" during POST and tell me to run BIOS Setup. It would still boot just fine but to get rid of the annoying error message, I disconnected the battery in an attempt to force it to run Setup (no matter what I did I couldn't find the correct key combination to run Setup). I know, really stupid. That's when I learned that not all computers come with BIOS Setup in ROM.
I didn't have the Setup disk (obviously) and I couldn't find it anywhere on the Internet, so the computer was essentially bricked and stayed like that for quite a while. However, I did eventually find a generic CMOS specification for AT computers and info on how to program it so I managed to hack together a very simple BIOS Setup program in QuickBASIC. I can still remember the feeling of accomplishment when I got the damn thing to boot from the harddrive like nothing had happened. :D
A couple of years later I found a generic Setup program for computers with Phoenix BIOS (attached) so now I prefer to use that instead.
Anyway, the point of all this rambling is that I too am interested in getting the original BIOS Setup program for the 'Wang Microsystems PC 250/16'. I had been meaning to ask for it on this forum before but never got around to it for some reason.
Or, if someone has info on the CMOS, in particular the 'extended CMOS' ie bytes 65-128, I would be grateful for that too.
Oh, I almost forgot, my computer doesn't ask for WWSETUP.EXE, it just tells me to run the SETUP program. And I can't even find the string WWSETUP in the BIOS so I'm guessing your Wang has a different version of the BIOS? At bootup mine says "Phoenix 80286 ROM BIOS PLUS Version 3.10 07" at the top and further down it says "ROMBIOS Version 03.13.00"
Anyhow, I hope you'll find the attached program useful especially since I fear that's the closest we'll get to the "real" thing.
/Krille