The SysInfo commands give you access to operating system level information about the hardware your application is running on, in addition to certain Windows state and security information.
With the SysInfo commands you can get the names of the user, domain, and the computer, as well as authenticate user credentials.
The state of the network can be verified to see if the computer is connected to the internet, and you can determine the MAC and IP address of the computer.
Hardware information can be queried, enabling you to determine the CPU speed of the computer. Both virtual and physical memory settings can be queried as well.
The SysInfo commands also give you access to the Windows environment variables, selected language settings, and information about which version of Windows your software is running on.