With "commands", Windows commands are addressed. Windows has a lot of commands which are delivered with the operating system. All these can be executed with VisualCron. If you have a set of commands to be executed, then a batch file is recommended.
Windows commands from Microsoft
All Windows commands are described here:
Windows 2000
Windows 2000 Resource Kit
Microsoft has written some commands that not are included in the operating system but can be downloaded for free here.
Writing your own batch file
What is a batch file? Read more about it here.
A list of useful batch files can be found here.
