Small icons missing - subst command - startup/logon scripts

> I have Windows XP Home Edition and my small icons are
> missing from the Folder bar. I have found the Microsoft
> Knowledge Base
> article ( http://support.microsoft.com/default.aspx?
> scid=kb;en-us;307028 ) which
> explains that this is a result of not having a C: drive
> (my hard drive is F and that you can use the "subst"
> command to fix this. The problems is you have to do
> this every time you start your computer unless you add the
> command to a startup or
> logon script, as the article suggests. I have found
> several other forums
> discussing this topic, but have yet to find out how to
> actually do this. So, if
> anyone knows about this and can detail the procedure for
> creating a startup or logon
> script to run this "subst" command, it would be much
> appreciated! Thanks.
>