The vdosplus "set" command, for example
Vdosplus /set LPT1 = "PDFtoPrinter.exe" #LPT1.PDF
or
Vdosplus /set font = consola
leads to a variety of odd xy3 behaviors in the new vdos window which the command opens.
The example in front of me is a simple xy3 macro which loads an HP printer driver. Perform it in the primary vdos window and it works as expected. Invoke it in the window loaded after the "set" command above, and it turns normally displayed black text into white italic text.
Not a pressing matter, but anyone else?