EXFO FTB-500 (Window XP) - Manual (Page 240)

Preparing for Automation
232 FTB-500
Configuring DCOM Access to Your Unit
5. In the EXFO KernosHost Properties dialog box, tap the Security tab.
6. Under Launch and Activation Permissions, select Customize, and
then click Edit to edit the list of allowed users.
I
MPORTANT
Customizing access rights sets both remote AND local permissions.
As a result, you will have to specify every user who must have local
access to the system (see Setting the General Security Parameters
on page 220).
If you do not specify local access rights, no user will be able to
access EXFO KernosHost and, therefore, no user will be able to start
ToolBox.