Illegal opsode FF at 000f:0625

[joemez]

Greetings,

I am trying to get Practical Accounting System v2.0 working under vdos but when I try to start it I get Illegal opcode FF at 000f:0625


It works in vdos plus but I have to pay to print, and my client would rather not. 

Is there a fix for this? 

Thank you!
Joe

[Jos]

I’ve never heard of Practical Accounting System, so have no idea what causes that exception.

If it can be replicated by only the program, perhaps a few extra files, post that and I’ll have a look.

Jos

[joemez]

Here is a link to a zip of everything.

Any clue would be great!

Thanx!

www.dropbox.com/s/l3xsys4g80pt2wt/PAS-w-vdos.zip?dl=0

[Jos]

It wasn’t the program causing the exception, but WINDOWS.EXE, called by LOADWIN.COM.
That first instruction is executing INT 3 (BREAKPOINT), I guess a check for not being debugged.
INT 3 was however not correctly setup by the new vDos version.

I don’t expect that to cause problems for other programs. I did a silent update of vDosSetup, you can download it again and re-install.

Jos

[joemez]

Beautiful! It's worked perfectly. Once I got paid for this job I will buy a license! and talk to the client to pay for one too.

THANK YOU VERY MUCH!!!!

Joe