The 4.4 release of SAS
Data Integration Studio overlays the installation of the 4.3 release.
Therefore, if you are upgrading from a previous release (such as SAS
Data Integration Studio 4.2 or 3.4), you must first install 4.3,
and then upgrade to the 4.4 release.
If you are upgrading
from SAS Data Integration Studio 4.3, you can simply overlay the 4.4
release onto your existing 4.3 installation.