A free multi-threaded IP, SNMP and NetBIOS scanner with several advanced features. The program pings computers, scans for listening TCP ports and shows what types of resources are shared on a network (including hidden). In addition,it allows you to mount shared resources as network drives, browse them, filter the results list and more. The scanner can also check for a user-defined port, resolve host names and auto-detect your local IP range.
Features:
- Pings computers.
- Does not require administrative privileges.
- Detects hardware (MAC) addresses even across routers.
- Detects hidden shared folders (normally invisible on the network) and write accessible shares.
- Detects your internal and external IP addresses.
- Scans for listening TCP ports and SNMP services.
- Retrieves currently logged-on users.
- 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 and remote shutdown.
- It is absolutely free, requires no installation, and does not contain any adware/spyware/malware.
What's New in version 4.3:
- Added '/config' command-line switch allowing to load a specific XML configuration file on startup.
- Added 'Open as Secure Web (HTTPS)' command.
- Added remote time-of-the-day discovery.
- New live display discovery modes. Either scanning for previously undiscovered nodes only, or rescanning those already discovered, or both (old behaviour).
- Enhanced search dialog (bidirectional now).
- Added IPv6 address discovery (Windows Vista and above).
- Minor code optimisations and GUI enhancements.
669 K (file size)
Price: Free 
