While installing InfoSphere QualityStage USAC client install on Windows 7, receive the following error:
Could not register C:\IBM\InformationServer9.1\Clients\Classic\AddressComponents.ocx:
The DataStage Core DLLs are built with VS6 whereas the QualityStage OCXs are built with VS2003. This results in the DLLs dependent on MFC42.DLL and the OCXs dependent on MFC71.DLL (which is not part of our installation packages).
MFC71.DLL may not be present in all Windows client versions and, when not present, will cause this error.
Resolving the problem
To resolve this issue, install patch JR42904 on the client prior to installing the USAC client code.