1)   Ping Scanner Pro 4.5
Ping Scanner Pro has 18 network tools, it can ping one address a lot of times or a lot of addresses one time. It will also tell you what MAC addresses are on your subnet, and perform DNS lookup or reverse DNS lookup. It does Traceroute, Whois.

 2)   Personal Computer System Information 1.0
Personal Computer System Information displays important information such as the CPU Speed, MAC Address, Ports, Memory (RAM), Disk Space, Video Card, Windows version, and applications installed. You can then save this information.

 3)   LanSpy 2.0
Network security scanner, which allows getting different information about remote computer. Nothing on the remote computer is hidden from you now!

 4)   User Logger 2.9
Logs useful information about a computer usage to a text file, such as who, when, what programs are running, computer identification (Name, IP address etc), plus Screen Shots. It runs invisibly and can be disguised in the Windows Task list.