you can't map to a folder that is not shared...
you can map to the route that you just specified, just create a share at the root of the folder...
for example: if you have a folder called "Backups" with the users folders under this according to the username, then just share the "Backups" folder and you will have to create each folder for the user...
as far as I know, win98 is not able to recognise the %username% switch in a copy command...or in any for that matter...
as far as I know this is only available in Windows 2000 and NT...
the way to check is to run the "set" command locally on the Win98 machine to see what environment variables are available...
if you run "set username" in Win2k you get the logged on user, you don't get that in Win98...
I will have a look if you can use the FOR or FIND commands in Win98, if you can you have ways of getting around this using the NET NAME command...