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

NetworkActiv AUTAPF
Configurable UDP and TCP port forwarding. With TCP port forwarding you can hide your web-server behind a gateway computer for added security. With UDP port forwarding you can run a multiplayer game server behind a gateway computer for added security and versatility. ... Can be set up to bounce connections back to connector (on same or different port). ... Shows the current data throughput speed of each port forwarding operation. ... Notice: This is 100% freeware; No ads, banners, spyware, or nags.
http://www.networkactiv.com/NetworkActivAUTAPFv1.0.exe - 168Kb - 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... 1st Ip Port Scanner allows for testing the UDP port's status based on ICMP Destination Port Unreachable message. ... And it also can find port,search port and scan port. ... 1st Ip Port Scanner allows for testing whether a remote computer is alive with three types ICMP, SYN and UDP and testing...
http://www.1st-soft.com/download/scanner.exe - 1Mb - Download - Screenshot

SkPortScan ActiveX Control
SkPortScan ActiveX Control is a lightweight and powerful port scanner control. It allows developers to integrate port-scanning capabilities into their applications. SkPortScan can be used for network exploration or security auditing. SkPortScan can determine what services (ports) are open... SkPortScan can scan different protocols simultaneously: - TCP ports only; - UDP ports only; - TCP and UDP ports simultaneously. ... It can operate in 3 different scan modes: - Scan range of ports; - Scan authorized ports only (authorized port numbers are divided into three ranges: the Well Known...
http://www.magnetosoft.com/downloads/skportscan_setup.exe - 2Mb - Download - Screenshot

pcSuper Scanner
Ordinary online scanners will only scan for fraction of the ports. Our proprietary pcSuper Scanner is the only scanner in the world that will scan ALL 65,535 ports, TCP server and client as well as UDP. What's more - it will doing this at an unbelievable rate in mere seconds! ... The opened port is only a problem if it was opened by a malicious program. ... Ports may be opened by a legitimate program and that is OK. ... In that case you will need pcInternet Patrol to sort it out. ... No other scanner gets even close.
http://www.pcinternetpatrol.com/downloads/pcscanner.exe - 22Kb - Download - Screenshot

Atelier Web Security Port Scanner
AWSPS features a very comprehensive set of tools, some of them unique, for in-depth assessment of Network Security: * High-speed TCP Connect scanning engine, with adjustable maximum number of simultaneously opened ports and no-connection time-out adjustment. ... * Fast reliable UDP Port scanner with intelligent test probing of ports to confirm whether the host is up. ... * Full-featured Time synchronyzer according to SNTP (RFC 1769), TIME TCP (RFC 868) and TIME UDP (RFC 868). ... * Local TCP, UDP and ICMP statistics instant report.
http://atelierweb.swmirror.com/awsps461.zip - 1Mb - Download - Screenshot

easy Look at Net
easy Look at Net is a simple ports scanner, packet sniffer and web-page source loader. Multithread port scanner and packet sniffer specifically made to scan opened TCP ports, packets are filtered by incoming and outgoing, by IP addresses, ports and protocols - TCP, UDP, ICMP, IGMP. ... Besides there is no need in third-party libraries, such as WinPCap, etc. ... Utility does not demand installation and is very simple in management that is important for beginning managers of networks. ... Simple web-page source downloader worked via proxy server, if is present in system.
http://lookanet.com/download/lookanet.exe - 164Kb - Download - Screenshot

myNetMon
myNetMon, Network Monitor and Packet Analyzing Tool (V. 2. 0) myNetMon is windows based network monitor and packet analyzing (sniffer) tool. myNetMon uses WinPcap, a windows port of Libpcap which is a packet capturing library. Features: * Physicial (Ethernet), * ARP, RARP, IPX, IPV4-6, *... packets according to their features, * Displaying packets in hexadecimal form, * Listing packets accoring to their types, protocols, MAC Addresses, IP Addresses and Ports, * Capturing only required packets (Layer 2/3, Protocol (ARP, TCP-UDP-ICMP...
http://www.trsecurity.net/mynetmon/mynetmon.zip - 923Kb - Download - Screenshot

Atelier Web Ports Traffic Analyzer
* Real-time mapping of ports to processes (applications and services)! * History since boot-time of all TCP, UDP and RAW ports open through Winsock and respective mapping to processes! * Log since boot-time of data sent and received (up to 500 MB) by above ports! ... * Sophisticated archiving feature allowing to review previous sessions with the same detail as the current session.
http://evalsoftware.atelierweb.com/awpta232.zip - 4Mb - Download - Screenshot

TCP IP Quick Guide
A "Must have" quick reference for IT/Networking professionals and students who are learning and using TCP/IP; Comprehensive Protocol Map focus on TCP/IP protocol suite and key layer 1 and 2 LAN, WAN an MAN protocols; Detailed explanations of IPv4 and IPv6; IPv4 and IPv6 addressing schemes; IPv4... 25 in x 11 in paper size for easy printing and use as a portable reference.
http://www.javvin.com/product/tcpipguide-demo.zip - 49Kb - Download - Screenshot