I've had some response now
I wish I knew an easier way to get at this information....
Click on the Start button
In the Search box, type dcomcnfg
and hit the Enter key
The Component Services dialog opens.
Expand Component Services, Computers, and My Computer.
Right-click My Computer and click Properties on the pop-up menu.
The My Computer Properties dialog opens.
Click the COM Security tab.
Under Access Permission click Edit Default.
The Access Permissions dialog opens.
There should be three entries there (SELF, SYSTEM, Administrators) - please list the existing Permissions ticked for each in your reply, together with any other entries present.
SELF and Administrators should have both Local and Remote access ticked.
SYSTEM should have only Local Access ticked.
adjust as required, and OK out.
reboot, (note the time, please - for later cross-reference in the event logs)