[Updated] SoftPerfect Network Scanner..Ver.5.4.5..Aug 8/12
SoftPerfect Network Scanner is a free multi-threaded IP, NetBIOS and SNMP scanner with a modern interface and many advanced features.
Pings computers and displays those alive.
Detects hardware MAC-addresses, even across routers.
Detects hidden shared folders and writable ones.
Detects your internal and external IP addresses.
Scans for listening TCP ports, some UDP and SNMP services.
Retrieves currently logged-on users, configured user accounts, uptime, etc.
You can mount and explore network resources.
Can launch external third party applications.
Exports results to HTML, XML, CSV and TXT
Supports Wake-On-LAN, remote shutdown and sending network messages.
Retrieves potentially any information via WMI.
Retrieves information from remote registry, file system and service manager
Added user-configurable CSV separator and file encoding.
Discover Intel AMT clients when doing HTTP banner grabs.
Fixed AV in the WOL manager when nothing was selected.
It is absolutely free, requires no installation, and does not contain any adware/spyware/malware.