XY4, vDos-lfn and expanded memory

["Paul Breeze" dmarc-noreply@xxxxxxxx (Redacted sender "paul.breeze" for DMARC)]

Dear Wengier
I have the latest version of vDos-lfn working on my system now and it
operates very smoothly, with easy switching between programs when in
full screen. Thanks for that.
Now that everything looks stable, I have been trying once again to
explore the memory issue we have been discussing, with a version of XY4
under Windows XP that does have access to expanded memory. First,
according to the manual XY4 will access up to 4M of expanded memory by
default if it is available so no switch is actually necessary. It
appears to use this to store large files as well and large dictionaries.
I have tested it with the /e1024 switch to limit the expanded memory
available. If I load a file that is 800kb in size, it is stored in
memory. However if I load a file of double this size, it has to swap
part of it to disc. This is indicated by an X that appears in the upper
right hand corner above the line for the larger file. With XY4 under
vDos-lfn, the X appears with both these files, as it does when I try to
carry out a spell-check with the UK dictionary, whatever the size of the
file.
This seems to me to indicate that the Expanded memory on offer in vDos
and vDos-lfn cannot be accessed by XY4. Do you know if anybody has been
able to verify that any other program that is capable of using expanded
memory has access to it under vDos-lfn? That might help indicate
whether this is just an XY4 problem or something more general.

Best wishes

Paul