Roadkil´s Audit is a small, totally free program that creates a type of database where the configuration of all the applications in your PC and your LAN configuration is stored like an inventory.
Roadkil´s Audit is an interesting tool to check all the machines on a LAN, and have all the information on each one stored away.
Once the check and inventory have been done, Roadkil´s Audit tells you some of the programs and hardware that need updating (as your version is now obsolete).