iTunes 9.1 fails to install with Bonjour service on Windows 7 x64 Ultimate

I've updated my iTunes + Quicktimes version on my Windows 7 Ultimate x64 system several times in the past without issues via the Help, Check for Updates, Install option.

Now with iTunes 9.1, I keep getting a "Bonjour Failed to Start" error. The funny thing is I can stop, start, etc.. the Bonjour service before I try the installation. After the installation it won't work anymore. It keeps erroring out.

I even tried uninstalling iTunes, Quicktime, Bonjour, etc.. and starting from scratch, but I keep getting the same error. I also tried the Manual install option from Tools, Download and still the same error.

It appears there is something wrong with iTunes 9.1, since I have iTunes 9.0.3 installed just fine without any issues.

Any thoughts?

Here's the error from Event Viewer on my PC:

SYSTEM LOG:
Log Name: System
Source: Service Control Manager
Date: 3/30/2010 9:17:49 PM
Event ID: 7024
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: XPS_M1530
Description:
The Bonjour Service service terminated with service-specific error The system detected an invalid pointer address in attempting to use a pointer argument in a call..
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Service Control Manager" Guid="{555908d1-a6d7-4695-8e1e-26931d2012f4}" EventSourceName="Service Control Manager" />
<EventID Qualifiers="49152">7024</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x8080000000000000</Keywords>
<TimeCreated SystemTime="2010-03-31T02:17:49.965226200Z" />
<EventRecordID>27284</EventRecordID>
<Correlation />
<Execution ProcessID="520" ThreadID="4668" />
<Channel>System</Channel>
<Computer>XPS_M1530</Computer>
<Security />
</System>
<EventData>
<Data Name="param1">Bonjour Service</Data>
<Data Name="param2">%%10014</Data>
</EventData>
</Event>