pardon me for butting in, i use a tiny freeware dos app. called 'locate.com'.
Just call this with the 'run' function
with the following parameters;

locate.com c:\windows\temp\*.* /k/y

it doesnt seem to slow down the login script noticably. even then, i only have it run depending on the day and time of day.
search the web for 'locate.com', works fine in dos, win9x and nt.