EXFO FTB-2 - Manual (Page 238)

Preparing for Automation
228 FTB-2 and FTB-2 Pro
Configuring DCOM Access to Your Unit
4. Right-click My Computer, and then select Properties.
5. In the My Computer Properties dialog box, tap the Default Properties
tab.
6. Select Enable Distributed COM on this computer.
7. Under Default Distributed COM Communication Properties, in the
Default Authentication Level list, select Connect.
8. In the Default Impersonation Level list, select Identify.
9. Tap Apply.