"Provider cannot be found.It may not be installed properly"

Hi All,
I am running into this error "Provider cannot be found.It may not be installed properly" while I am trying to connect to Oracle from Excel VBA.
I had installed both Oracle 10.1 and Oracle 10.2 in the same machine and is working with .NET applications.My .NET applications works fine.But when I try to connect from within the EXCEL VBA,it gives me this error.
This is my oracle client folder structure
Oracle 10.1 -> C:\Program Files\Oracle\product\10.1.0\Client_1
Oracle 10.2 client -> C:\Program Files\Oracle\product\10.2.0\Client_2
Oracle 10.2 ODAC -> C:\Program Files\Oracle\product\10.2.0\Client_1
As part of working around this error,I have uninstalled my 10.2 and now I just have 10.1 in my local machine.
This is the code snippet where the error occurs in VBA
Set Conn = New ADODB.Connection
Conn.ConnectionString = "Provider=OraOLEDB.Oracle;Data Source=datasource;User ID=userid;Password=pwd;CacheType=Memory"
Conn.ConnectionTimeout = 60
Conn.Open
I would really appreciate any help as I have been working around this erro for the last 2 days
Thanks much!

Hi,
Why do you have 3 Oracle homes?
Mutliple Oracle homes on Windows is a pain at best. Oracle's OLEDB and ODBC drivers require that their home be first in your PATH.
Generally you can have as many homes as you want, but can only USE the home that's first in your PATH, and things like OraOLEDB, being a com object, can only be installed into a single home.
In your registry, what does HKEY_CLASSES_ROOT\CLSID\{3F63C36E-51A3-11D2-BB7D-00C04FA30080}\InprocServer32\(Default) point to (the entry for Oracle's OLEDB provider)? Is it the same home that's first in your path if you open a dos prompt and type PATH?
Hope it helps
Greg

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