at kommando!!!

Jeg har et problem med en AT kommando. Jeg fandt et fint script til at sende email reminders afsted og det virker MEN. For at sende emails ud en gang om dagen anbefaler de at man bruger AT kommandoen. Her er hvad de skriver:
Assuming you have access to the NT server, these are the steps
you need to follow to set up an "at job":

  1. Click Start, then Settings, then Control Panel.

  2. Double click on the "Services" icon.

  3. Click on the "Schedule" service, and if it is not already
      started, click "Start."

  4. If it does not say "Automatic," you'll need to make sure it
      starts automatically.  Click "Startup" then make sure that
      "Startup Type" is "Automatic" and click "OK".

  5. Click "Close" to close the Services Control Panel module.

  6. Now you'll need to go to the DOS prompt. Click "Start," then
      "Run", then type "cmd" into the box, and click "OK."

  7. At the DOS prompt, type the following (on one line):

      at 00:00 /every:m,t,w,th,f,sa,su "c:\path\to\remindme\remindme.cgi send_reminders"

    Where "c:\path\to\remindme\remindme.cgi" is the full system path
    to where you have the remindme program installed on the server.

Når jeg så gør hvad der står, får jeg en fejl besked.
Du brugte en parameter med en ugyldig værdi.

Jeg kører Win XP dansk pro version.
Hvad er fejlen???

T2C