Just as a quick test (no idea where I'm going with this) but what happens if you SetFocus back to the DOS window just after the form is created, for example:

code:
break on
 
$frmForm = CreateObject("Kixtart.Form")
$frmForm.Show
 
$= SetFocus ("Command Prompt")
 
run "%comspec% /c dir"
 
? "press a key"
 
get $x