CmmOsNoToolName = "not defined" - This registry entry unloads the tool in a probe changer configuration.
TcAllowUnload = FALSE - Boolean. The default is FALSE. If this value is TRUE, this registry entry sends the command to unload the probe in the probe changer to the CMM-OS.
UseToolChanger = FALSE - Boolean. The default is FALSE. If this value is TRUE, this registry entry allows the use of probe changer commands instead of probe commands.