I would like to know, without having access to a Vista PC, if certain Dos programs can still be run at all under Vista? As far as I know, there is no longer a 'command prompt' one uses just 'run' instead, but can you get at the memory properties of the 'run' command to control it's behaviour? The particular example to hand is Foxpro 2.6 runtime, which can be got working under XP but only by effectively replacing the default cmd.exe by command.com in fundamental system environment. Having done that, the program properties (which are absolutely minimal under cmd.exe), become much more extensive, and one can specify that the program uses DPMI memory and so on. Without that, one gets weird and wonderful messages like "Phar-lap error" which is actually from the extended memory handler underneath Foxpro.