I described the Windows XP command line scheduler in tip 4806.
When you attempt to run schtasks.exe in Windows 2000, you receive:
ERROR: The Target system must be running Windows XP or above.
You can use a hexadecimal editor to alter schtasks.exe to be able to run on Windows 2000:
1. Open schtasks.exe in the hexadecimal editor.
2. Change the hexadecimal 75 at location 0x0000CB2A to hexadecimal EB.
3. Save the modified schtasks.exe file in a folder in your path.
NOTE: If SP1 is installed, the location is 0x0000CC50.
NOTE: If SP2 is installed, the location is 0x0000E3F8.