Looking at the Useful utilities thread I don't see any mention of the windows tool "systeminfo".

Pretty simple to use, just open a command prompt, then type "systeminfo" (no quotes). It provides some device and configuration info about the computer. One good way to use it is

systeminfo > c:\sysinfo.txt

then you can open sysinfo.txt with notepad and see something like

Host Name:                 MyBox
OS Name:                   Microsoft Windows XP Professional
OS Version:                5.1.2600 Service Pack 1 Build 2600
OS Manufacturer:           Microsoft Corporation
OS Configuration:          Standalone Workstation
OS Build Type:             Multiprocessor Free
Registered Owner:          Sukotto
Registered Organization:   MyCo
Product ID:                xxxxx-OEM-xxxxxxx-xxxxx
Original Install Date:     3/31/2005, 6:02:33 AM
System Up Time:            2 Days, 2 Hours, 55 Minutes, 28 Seconds
System Manufacturer:       IBM
System Model:              8187T8U
System type:               X86-based PC
Processor(s):              2 Processor(s) Installed.
                           [01]: x86 Family 15 Model 3 Stepping 4 GenuineIntel ~2992 Mhz
                           [02]: x86 Family 15 Model 3 Stepping 4 GenuineIntel ~2992 Mhz
BIOS Version:              PTLTD  - 60400d0
Windows Directory:         C:\WINDOWS
System Directory:          C:\WINDOWS\System32
Boot Device:               \Device\HarddiskVolume1
System Locale:             en-us;English (United States)
Input Locale:              en-us;English (United States)
Time Zone:                 (GMT-05:00) Eastern Time (US & Canada)
Total Physical Memory:     1,015 MB
Available Physical Memory: 403 MB
Virtual Memory: Max Size:  3,459 MB
Virtual Memory: Available: 2,159 MB
Virtual Memory: In Use:    1,300 MB
Page File Location(s):     C:\pagefile.sys
Domain:                    MYDOMAIN
Logon Server:              \\xxx-xxxxxxxxxxx
Hotfix(s):                 180 Hotfix(s) Installed.
                           [01]: File 1

                           SNIP

                           [159]: Q8
                                                      
NetWork Card(s):           1 NIC(s) Installed.
                           [01]: Intel(R) PRO/1000 MT Desktop Connection
                                 Connection Name: Local Area Connection
                                 DHCP Enabled:    Yes
                                 DHCP Server:     xx.xx.xx.xx
                                 IP address(es)
                                 [01]: xx.xx.xx.xx