SIW - System Information for Windows
"Everything you want to know about your computer"
John Tergen has created a Control Panel Applet for SIW, in order to start it.
Download the applet from http://www.gtopala.com/download/siw.cpl and save it in the C:\WINDOWS\SYSTEM32 directory (or C:\Windows\SysWOW64 if you have a 64-bit Windows).
The applet's configuration is stored in Registry (HKEY_LOCAL_MACHINE\Software\NKY Inc.\Siw).
If you want to know more about writing Control Panel Applets, here is The Book.
Download SIW_CPL source code.