Vista Tutorial - DistributedCOM System Event 10016 Error

About every hour I'm getting the following red alert and have tried looking
up how to deal with it without much success so far. I found one explanation
but the registry entry they talked about doesn't exist in my Vista Ultimate.
I am signed in as Admin by the way. Any ideas anyone?

Log Name: System
Source: Microsoft-Windows-DistributedCOM
Date: 20/08/2007 6:47:25 PM
Event ID: 10016
Task Category: None
Level: Error
Keywords: Classic
User: R2D2\Peter
Computer: R2D2
Description:
The application-specific permission settings do not grant Local Activation
permission for the COM Server application with CLSID
{0C0A3666-30C9-11D0-8F20-00805F2CD064}
to the user R2D2\Peter SID (S-1-5-21-2890590643-2278680530-3289789162-1000)
from address LocalHost (Using LRPC). This security permission can be
modified using the Component Services administrative tool.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-DistributedCOM"
Guid="{1B562E86-B7AA-4131-BADC-B6F3A001407E}" EventSourceName="DCOM" />
<EventID Qualifiers="49152">10016</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2007-08-20T22:47:25.000Z" />
<EventRecordID>6018</EventRecordID>
<Correlation />
<Execution ProcessID="0" ThreadID="0" />
<Channel>System</Channel>
<Computer>R2D2</Computer>
<Security UserID="S-1-5-21-2890590643-2278680530-3289789162-1000" />
</System>
<EventData>
<Data Name="param1">application-specific</Data>
<Data Name="param2">Local</Data>
<Data Name="param3">Activation</Data>
<Data Name="param4">{0C0A3666-30C9-11D0-8F20-00805F2CD064}</Data>
<Data Name="param5">R2D2</Data>
<Data Name="param6">Peter</Data>
<Data
Name="param7">S-1-5-21-2890590643-2278680530-3289789162-1000</Data>
<Data Name="param8">LocalHost (Using LRPC)</Data>
</EventData>
</Event>

I am having the exact same problem & also don't have the registry entry tool
to use (Administrative Tools>Component Services) as explained by MS.
Unfortunately, my "red errors" have turned into fairly consistent red
criticals. I would like to correct the problem. Thanks for any help. (PS:
Should I have started a new thread with this conversation?)

"Peter" wrote: