Hi james6pak,
You can run a command line from a command window (the old DOS looking window), from a batch file, or directly in Windows Task Scheduler. The more common usage for Fund Manager is probably the batch file or Windows Task Scheduler.
Command Prompt:
Select "Start / Run..." and type in "cmd" and press enter. This should open a command prompt window, where you can type in the commands, with any command line arguments you want. This can be useful for testing in the process of creating a batch file. You can also get to this command prompt with "Start / All Programs / Accessories / Command Prompt".
Batch File:
Create a text file with the extension of .bat. You can create this in any text editor, like Notepad. Enter in your commands into this file. You can now "run" this batch file, like you would any other program. For example, double click on it in Windows Explorer. You can also assign it to run on a schedule, using Windows Task Scheduler.
Windows Task Scheduler:
When you set up a task, you can choose a program to run, plus add optional command line arguments. For basic automatic price updating using Fund Manager command line arguments, this is probably the easiest method to use.
For reference, here are the available command line arguments for Fund Manager, plus some samples:
http://www.fundmanagersoftware.com/help/ui_comline.html