Following the install of KB983246 a Microsoft ActiveX Data Objects application (ADO) returns the following error message:
Run time error “430”: Class does not support Automation or does not support the expected interface.
This is due to the version of the msado15.dll which is referenced on the workstation that has compiled the ADO.
The version msado15.dll installed by KB983246 is 6.1.7601.17514 and will not run on any previous versions of this file.
To resolve this issue you will need to install Windows 7 and Windows Server 2008 R2 Service Pack 1 (KB976932) to update msado15.dll as Microsoft have now retired KB983246.