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

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 employs a unique system security analysis algorithm based on a patented "intellectual core". ... 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,...
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

Fast Port Scanner
Fast Port Scanner is a fast multithreaded port scanner that scans about 400 ports a second. It supports both the TCP/IP and UDP protocols. You can select address ranges to scan multiple interfaces or hosts. Any open ports will have the any suspect Trojans listed with it. ... This program is free when using Global Up Time website monitoring service.
http://www.globalwebmonitor.com/software/FastScannerSetup.exe - 636Kb - Download - Screenshot

IP Ping tool
Fastest ip scanner what you ever see! IPPingTool can ping 255 hosts for only 3-4 seconds. Just try it. Main features: fast scan C class network, retrieve hostname if host response, build reports in html or xls, automatic rescan after some seconds. Freeware.
http://miridixsoft.com/files/IPPingTool_setup.exe - 586Kb - Download - Screenshot

Advanced Port Scanner
Advanced Port Scanner is a small, very fast, easy-to-use and robust port scanner for the Win32 platform. It is multithreaded, so on fast machines you can scan ports in very a few seconds. It has descriptions for the common ports and can perform scan on predefined port ranges.
http://www.radmin.com/download/pscan12.exe - 533Kb - Download - Screenshot

1st Ip Port Scanner
1st Ip Port Scanner ip finder,port finder,ip scanner,port scanner,ip tracer,ip tracker,ip camera all in one software. Find ip address,search ip address,trace ip address,scan ip address,find port,search port,scan port. Full Product Description 1st Ip Port Scanner is a very useful Ip Scanner and... It builds ip finder port finder ip scanner port scanner and ip tracer ip tracker ip camera in one software. ... Ip finder port finder ip scanner port scanner and ip tracer ip tracker ip camera all in one software.
http://www.1st-soft.com/download/scanner.exe - 1Mb - Download - Screenshot

Axence NetTools
Host monitoring with alerting and long term charts of response time & packet lost. With alerting you can set e-mail, message, sound, and tray notifications. Other features: graphical ping, fast traceroute (full trace in 1 second), lookup, port scanner, TCP/UDP service scanner, network scanner... Free and Pro versions. ... It has the most highly intuitive user interface and may run in the Icon tray to continuously monitor hosts. ... ), and full SNMP browser.
http://www.axencesoftware.com/Download/NetTools2.exe - 6Mb - 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. ... 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! ... Try this program and you will see, how easy and simple your network management can be!
http://www.radmin.com/download/ipscan14.exe - 337Kb - Download - Screenshot

FreePortScanner
Free Port Scanner is a small, fast, easy-to-use and robust port scanner for the Win32 platform. You can scan ports on fast machines in a few seconds and can perform scan on predefined port ranges. This tool uses TCP packets to determine available hosts and open ports, service associated with... The tool is designed with a user-friendly interface and is easy to use.
http://www.nsauditor.com/freeware/downloads/FreePortScanner.exe - 518Kb - Download - Screenshot