http://www.alexnolan.net/software/sysspec.htm

System Spec is a self contained EXE which lists a no nonsense
specification of your machine without listing lots of useless memory
address and unnecessary information.

Items shown include the following

* Computer Name
* Username
* IP Address
* MAC Address
* Windows version and service pack
* Windows Serial Number
* Internet Explorer Version
* Memory
* CPU Type and speed
* Calculated CPU Speed
* Sound card type
* Video card make
* Screen Resolution: 1280 X 1024
* Network Card
* Power Status (for laptops)
* Time Zone
* CD Burner Installed
* COM Ports
* LPT Ports
* Hard Disks
* HD Serial Number
* BIOS Date
* PC Serial number
* Manufacturer
* PC Product
* PCMCIA (Laptops)

Windows function such as shutting down and run can be performed from
the System menu. The Control Panel menu allows you to quickly open
items from the Control Panel.