Desktop Pinger is a Servers & Network software developed by PJ Applications. After our trial and test, the software is proved to be official, secure and free. Here is the official description for Desktop Pinger:

Test anything that replies on a ping (ICMP). This little stay on top application is a handy tool for the HELPDESK verifying that computers and other Equipment are connected and online. Desktop Pinger don't require installation, just Copy it to a suitable folder and start using it right away.

Tip. Copy Desktop Pinger to your memory stick and take it with you, when performing support away from your PC.