This article describes a known installation issue.
Neverfail Heartbeat V4.6 and prior:
Neverfail Heartbeat will not operate if installed to a path that contains spaces e.g. "C:\Program Files\Neverfail"
The default location for a Neverfail Heartbeat installation is "C:\Neverfail" and should not be altered to a path that contains spaces.
An installation made to a path containing spaces may result in the need for a complete re-installation of Neverfail Heartbeat.
Neverfail Heartbeat V5:
Do not install to a path containing a comma or semicolon.
If you require further information please contact your Neverfail support representative.