yes, if you are running the file off of your computer, or a computer that you have access to the Start Menu, you can do this..
Im not sure what The W2K layout is, cuz i have XP, so the location might be different.
Control Panel --> Scheduled Tasks --> Add Scheduled Task
This is going to have to point to a .bat file
To create it simply open Notepad and type:
DRIVE:\pathto\php.exe script_To_Run.php
So, if I wanted to run a userdeletion script named userdel.php, and my php.exe is in C:\php\ my batch file would be:
C:\php\php.exe userdel.php
and i would call it something like, userdelete.bat
Make sure that the userdel.php is in the same folder as php.exe.
So then, simply "Add Scheduled Task" towards your .bat file.
Further Reading that might be helpful