Prestwood Ping Server
The Prestwood Ping Server automates the monitoring of web sites and ftp sites by issuing ping or HTTP requests on regular intervals. It is an ideal application for server farms, large web sites spanning multiple domains, online game servers, download file servers, or any enterprise that spans... The Ping Server is designed to send automated email messages whenever a site is determined to be down. ... The user can designate one or more email recipients to send the messages to, allowing users to send to inboxes, text messaging pagers and/or cell phones simultaneously.
http://www.prestwood.com/downloads/ppings11.exe - 2Mb - Download - Screenshot

Utility Ping
Utility Ping was used by thousands of network administrators. It can ping as many TCP/IP addresses as you want. Utility Ping can send all report error code or selected report to the pointed email address. Make sure the web you want to visit is available. ... Check out the location of a specific IP address/domain name/URL Draw an URL from a website and monitor the connection Evaluate the connection by approximate speed User-defined data length Have a detailed report on each ping Email setting.
http://www.ptshare.com/download/utilityping.exe - 1Mb - Download - Screenshot

PingCOPA Ping and Traceroute
PingCOPA, is an aid to network engineers when monitoring and diagnosing network problems. PingCOPA installs on all 32 bit Microsoft Windows operating systems (except 95). Speech is only available on systems with the Microsoft Text-to-speech engine installed. ... PingCOPA allows simultaneous multiple ping and trace route sessions. ... Ping sessions can be saved so you can recall address ranges and search options easily. ... Traceroute provides both ICMP and UDP hops. ... A network calculator provides a means to determine subnet masks and ranges, and various command line tools are provided...
http://www.intervations.com/download/pingcopa/_pingcpa.exe - 2Mb - Download - Screenshot

Advanced Email Verifier
Advanced Email Verifier (AEV) is your powerful solution for the "message delivery error". AEV is designed for system administrators, webmasters, programmers as well as for those advanced users who have their own mailing lists and need to keep them up-to-date. ... AEV verifies every email address from a mailing list or database and determines up to 70-80% of "dead" email addresses. ... This happens because the appropriate mail servers receive all the messages regardless of whether the email address is valid or not, and then return the message if the email address doesn't exist anymore.
http://mirror1.glocksoft.com/aev.zip - 4Mb - Download - Screenshot

A1Monitor Network Monitor TCP or Web
Monitor multiple web or TCP servers (http, https, ftp, pop3 etc. ) Receive email notification by email or pager if any can't server can't be reached a number of times in a row. A1Monitor can reboot your NT server or run a batch file or program for you. ... Monitor Ping requests to any IP address. ... Supports http, https, ping, ftp, telnet, pop3, smtp, dns, imap, dns, or any other TCP port you want. ... Email Notifications when servers go down and when they come back up. ... Runs minimized in the system tray.
http://files.a1tech.com/files/a1monitor.exe - 3Mb - Download - Screenshot

IPCheck Server Monitor
IPCheck Server Monitor 5 helps organizations monitor critical network resources and immediately detect system failures or performance problems. It offers reliable network and website monitoring using Paessler's IPCheck? Technology, fast and easy installation, support for Windows NT/2000/XP/2003... The Freeware Edition monitors up to three sensors and is limited to PING, PORT and HTTP sensors and can be upgraded to the full feature set by requesting a Free 30 Day Trial License or by purchasing a Full License.
http://download2.paessler.com/download/ipcheck.zip - 16Mb - Download - Screenshot

Engineers Edition
Do you need to know the bandwidth utilization of your network? Would you like to be automatically notified when a node begins to develop problems? With the Engineers Edition Toolset from SolarWinds you get all this and more. The Engineers Edition contains over 38 Network Discovery, Monitoring... The Complete set includes: Advanced Subnet Calculator, Bandwidth Monitor, Config Viewer, Config Uploader, DHCP Scope Monitor, DNS Audit, DNS / Whois Resolver, Enhanced Ping , IP Network Browser, MIB Walk, Network Address Recovery, Network Monitor, Network Sonar, PING, Ping Sweep, Proxy Ping, Router...
http://www.solarwinds.net/downloads/SWEEE330.zip - 16Mb - Download - Screenshot

PA Server Monitor Free Edition
PA Server Monitor has powerful features that are very simple to setup. The Free edition monitors web pages, ping response and the Windows event log, and response actions that can send SMTP email notifications, reboot the server, and more. Reports can be generated about most monitored resources. ... There's nothing like our Easy Configuration system for quickly setting up multiple computers, or our smart email alerts that bundle alerts together to keep from overwhelming your inbox. ... Our smart alerting will tell you about a particular problem once, and then tell you when it is fixed...
http://www.poweradmin.com/servermonitor/servermonitorfree.exe - 5Mb - Download - Screenshot

ipPulse
ipPulse is a Remote Status Monitoring Tool. Use ipPulse to monitor the up/down status of IP connected devices (nodes) on any IP connected network. ipPulse uses a variety of methods, including ping, tcp connects, and SNMP to poll and check the network connectivity of a list of user-defined nodes. ... Supports standard Ping ICMP Echo Requests/Replies and automatically uses UDP High Port Ping under Winsock 2 for failed contacts. ... Alert options include beeping your computer, playing a wave file, notifying someone by email, or paging someone using either standard numeric or TAP compatible...
ftp://ftp.nwpsw.com/pub/ipls165.zip - 1Mb - Download - Screenshot

Monitor Wolf
Is your Web Site Working Right Now? Let your PC watch your web site every minute of the day! Accurately measures the performance of any web site. Tracks server response using Active Ping technology, verifies DNS resolution and monitors HTTP visibility. ... Watch response trends displayed graphically and be notified immediately by email or alarm if your site fails or responds slowly. ... Server response is measured and monitored using Active Ping Technology. ... Watch response trends displayed graphically: Data is compiled from each ping response and the results plotted to illustrate trends.
http://www.lonewolf-software.com/MonitorWolf/MWsetup.exe - 6Mb - Download - Screenshot