The CLSID is exactly the same (CD000002-8B95-11D1-82DB-00C04FB1625D) and the file is "c:\windows\system32\cdosys.dll"

>Try the same for 'CDO.Configuration.1' and also display value of lcActiveXFileName
>
>>I've downloaded your suggested example and added print (?) to expose loCLSID and I've received:
>>
>> for CDO.Message {CD000001-8B95-11D1-82DB-00C04FB1625D}
>>
>> for CDO.Configuration {CD000002-8B95-11D1-82DB-00C04FB1625D}
>>
>>
>>>What file CLSID points to? You can use code from http://www.berezniker.com/content/pages/visual-foxpro/verify-activex-presence-and-registration to retrieve that info.
>>>
>>>>Unfortunately I don't know about CDO related stuff, so I can't answer that question.
>>>>Even after re-registering CDO, the error persist and is exactly the same.
>>>>(obs: The object created with CreateObj("CDO.Configuration") does point to CLID in registry, etc)
>>>>
>>>>I would say that CDO.Message works fine, but CDO.Configuration is access denied by some unknown reason.
>>>>By the way, cdosys.dll has Apr/13/2008 as its version date tag.
>>>>