I purchased a new laptop with Vista and Office 2007 trial on it. I also installed Office 2003 side-by-side with Office 2007, but there were many issues. So i removed both the versions and deleted the office folder in C:Program files and the registry and then reinstalled office 2003, but the issue was still there. Any thing done in Outlook will launch Windows installer to configure Office 2003. If I am receiving an email, deleting an email, copying some contacts from one pst folder to another, the issue starts. Can anyone please tell me how to solve this problem? Thanks.