GFI LANguard is the award-winning network and security scanner used by over 20,000 customers. GFI LANguard scans your network and ports to detect, assess and correct security vulnerabilities with minimal administrative effort. As an administrator, you have to deal separately with problems related to vulnerability issues, patch management and network auditing, at times using multiple products. However, with GFI LANguard these three cornerstones of vulnerability management are addressed in one package. We give you a complete picture of your network set-up and help you to maintain a secure network state faster and more effectively.

Features:-
Automatically checks the password policy for all machines on the network
Checks for programs that run automatically (potential trojans)
Finds out if the OS is advertising too much information
Performs simultaneous scans through the multithread scan engine
Provides NetBIOS hostname, currently logged username and MAC address
Provides a list of shares, users (detailed info), services, sessions, remote TOD (time of day) and registry information from remote computer (Windows)
SNMP device detection, SNMP Walk for inspecting network devices like routers, network printers and more
Offers alternative command line deployment tool
Identifies all installed Windows services
Supports Microsoft Windows Vista

Homepage - http://www.gfi.com/lannetscan