Hi. Friends!
I am having a problem to install Group Mail Business Edition 5.2.052 under Windows Vista O.S. In the middle of the installation process I keep on getting error messages such as :

c:\windows\system32\oleaut32.dll
Unable to register DLL/OCX:dllregister server failed; code 0x80070005 access denied

The others errors are similar and the consecuence is that certain files cannot be registered and the software does not work properly.
I think that is a problem related to Vista´s security but I am not able to overcome it.
Can anyone please give me a hint?. Besides, does someone know how to get another application to send personalized emails through Outlook 2007, such as "Send Personally" or any other.
Thank you in advance to all.