WinAudit is a very cool program to run quick checks of softwares, licenses, security configuration,hardware, network settings, memory usage, processor model, network settings, etc on a system. The app is: -free -small in size -does not require installation -very exhaustive in its audit scans and reports -built with numerous export options including pdf and chm. You can also email the report.
Original link to the software: http://www.pxserver.com/WinAudit.htm
Cheers! Neozen