Carl,Turns out there's a fix for that one. Remove umb=load from the 4dos ini file. Commenting it out produces an error message, though you can still proceed.
From: Carl Distefano
To: xywrite@xxxxxxxx
Sent: Saturday, October 24, 2015 7:14 PM
Subject: Re: Keyboard handling etc.
Reply to note from "John Paines" mailto:dmarc-noreply@xxxxxxxx
(Redacted sender "vf200" for DMARC) Sat, 24 Oct 2015 18:51:22 +0000
(UTC)
John,
> it sounds like the failures are more extensive with xy4.
Does the DOS command work for you? It crashes Xy3 here.