NetworkActiv Port Scanner
NetworkActiv Port Scanner is a network exploration and administration tool that allows you to scan and explore internal LANs and external WANs. Because of the versatility and choosable operating modes available in NetworkActiv Port Scanner, it may be used by experienced network administrators as... NetworkActiv Port Scanner provides all the basic features that you'd expect in an advanced network scanner, but also provides many additional features and technologies, some of which being completely unique to this scanner.
http://www.networkactiv.com/NetworkActivPortScannerV4.0.exe - 2Mb - Download - Screenshot

xSharez scanner
xSharez scanner is a multithreaded NetBIOS/SMB scanner designed for both network administrators and users interested in the network security issues. This software will help you to solve one of the most serious problems of all modern computer networks - unauthorized data access using NetBIOS/SMB... - Mount shared resources that are found by the program as network drives or simply browse them using Windows Explorer. ... What xSharez Scanner can do for you: - Audit B and C classes networks for the shared resources availability with different usernames and passwords.
http://www.tools-for.net/download/xsharez3demo.exe - 1Mb - Download - Screenshot

Capturix ScanShare
Share a scanner device over the network. With this application you can share any compatible scanner (TWAIN) over the network and use it also as a copy machine. This ables users to access your scanner via browser and scan documents, and take copies using the printer connected to the PC that is... Now you can use Scan2E-mail, setup user profiles to use the scanner and much more. ... It scans directly to PDF/BMP/JPEG/PNG ! ... Flip and Invert without using other image software. ... This software runs as a system service and support multiple scanners.
http://download.capturix.com/scanshare.exe - 4Mb - Download - Screenshot

ShadowSecurityScanner
Shadow Security Scanner (network vulnerability scanner) has earned the name of the fastest ? and best performing ? security scanner in its market sector, outperforming many famous brands. Shadow Security Scanner has been developed to provide a secure, prompt and reliable detection of a vast... Shadow Security Scanner performs the system scan at such a speed and with such a precision so as to be able to compete with the professional IT security services and hackers, attempting to break into your network.
http://www.safety-lab.com/SSS.exe - 4Mb - Download - Screenshot

Advanced LAN Scanner
Advanced Lan Scanner is a small, easy-to-use, highly configurable network scanner for Win32. And it's fast. It's VERY fast. Advanced Lan Scanner uses multithreading technique, that gives it ability to scan more than 1000 elements per second! If used to scan ports, Advanced Lan Scanner can scan... Also, fast scan is not only Advanced Lan Scanner good feature. ... So, try our freeware program and see, how REAL Lan Scanner must look. ... It also has a powerful export options with script language to describe your own save format!
http://www.radmin.com/download/lscan1b1.exe - 562Kb - Download - Screenshot

MegaPing
MegaPing is the ultimate must-have toolkit that provides all essential utilities for Information System specialists, system administrators, IT solution providers or individuals. It includes: Scanners: Comprehensive Security Scanner, Port scanner (TCP and UDP ports), IP scanner, NetBIOS scanner,... Automatically detect security vulnerabilities on your network MegaPing security scanner checks your network for potential vulnerabilities that might use to attack your network, and saves information in security reports.
http://www.magnetosoft.com/downloads/megaping_setup.exe - 4Mb - Download - Screenshot

Advanced IP Scanner
Advanced IP Scanner is a fast, robust and easy-to use LAN scanner for Windows. It easily lets you have various types of information about local network computers in a few seconds! It gives you one-click access to many useful functions - remote shutdown and wake up, RAdmin (www. ... Try this program and you will see, how easy and simple your network management can be! ... Powered with multi-thread scan technology, this program can scan hundreds computers per second, allowing you to scan 'C' or even 'B' class network even from your modem connection!
http://www.radmin.com/download/ipscan14.exe - 337Kb - Download - Screenshot

SoftPerfect Network Scanner
A free multi-threaded IP,SNMP and NetBIOS scanner with a modern interface and several advanced features. It is intended for both system administrators and users who are interested in computer security. The program pings computers, scans for listening TCP ports and shows what types of resources... SoftPerfect Network Scanner can also check for a user-defined port and report if it is found open, resolve host names and auto-detect your local IP range. ... In addition, it allows you to mount shared resources as network drives, browse them using Windows Explorer, filter the results list and more.
http://www.softperfect.com/download/netscan.exe - 670Kb - Download - Screenshot

NetPenguin
NetPenguin - including following network tools:IP Scanner which can find IP address;LAN Scanner which can scan IP addresses in ethernet LAN;Ping;netstat;Port Scanner;Domain Name Search which can...
http://www.netpenguin.net/software/NetPenguin.exe - 9Mb - Download - Screenshot

Essential NetTools
Essential NetTools is a set of network tools for diagnosing networks and monitoring your computer's network connections. NetStat: displays the list of your computer's network connections, information on open TCP and UDP ports, IP address, and connection states. ... SNMPAudit: an SNMP device scanner that can discover SNMP devices in the selected network segment and receive customizable data from each of the devices. ... PortScan: an advanced TCP port scanner that allows you to scan your network for active ports.
http://www.tamos.com/files/ent4.zip - 3b - Download - Screenshot