Download the attached registry import file, and save it to your Windows desktop.  Once downloaded, double-click the file to import the Windows registry entry.
The file is a single record registry update that tells IntoxNet (v 4.3.4 through 4.5.3) how to expect a Total Recall 2.3.0 or 2.3.1 system to "talk" to it.  It was expecting a slightly different method, which isn't implemented in Total Recall 2.3.0 or 2.3.1.