Screenshot(s): 

Features:

• allows you to ping multiple hosts simultaneously
• multiple statuses: Green, Intent Green, Yellow, Intent Red, Red
• wide range of configurable parameters
• balloon message when host goes offline (status changes to "Red" after a configurable number of "Intent Red" statuses) or online (status changes to "Green" after it was "Red")

FAQ:

• Q: How do I avoid the "Yellow" status?
  A: Just set the "limit green" value to a value greater or at least equal to the "timeout" value.
• Q: I don't want these "Intent Red" and "Intent Green" statuses. Is it possible that there are just "Green" and "Red" statuses?
  A: Set the "intent green to green count" and "intent red to red count" values to 0.

History:

Changes since 1.0.2.15:

• bug fixed: online/offline messages can be logged to window and/or file separately
• improved logging-system

Changes since 1.0.2.14:

• bug fixed: toolbar disappears after a certain time

Changes since 1.0.2.13:

• found bug: online/offline messages are logged if and only if the ping messages are logged (still not fixed)
• thread-save calls (e.g. logging)
• ping statistics can be reset using the popup menu

Changes since 1.0.2.12:

• it's possible to use a log-file in addition to the log-window
• separate configuration switches for:
  • log pings
  • log error messages
  • log online/offline messages

Changes since 1.0.2.11:

• it's possible to use an external ping program, like the windows ping.exe

Changes since 1.0.2.10:

• after stop pinging a host, the status will now change to "Unknown"

Changes since 1.0.2.9:

• the "intent green to green count" value and the "intent red to red count" value are correctly set now
• allows to decide whether ping results and/or ping errors should be displayed in the window log
• displays the time for each message within the log window
• hint messages in the preferences dialog (especially for the date/time format)

TODOs:

• be able to start pinging at startup
• limit size of log-file
• events (e.g. to start pinging a host after another goes offline, or to start another program after a status change)
• user-defined event on double-clicking a hostname