If you are using CAD software, update the Engineering Link Software:
Remove the Engineering Link Software. In order to do this, go to Add or Remove programs in Control Panel, select the software and click Remove.
On your network, open Windows Explorer and navigate to the following directory: \IsahSetup_4_5_EngineeringLink\[UPDATEPACKNO]_[VERSIONNO]\.
Double-click the file IsahEngLink.msi (32 bit). Only if you are using a 64-bit third party application or when you are using your own 64-bit development environment, use IsahEngLinkx.msi (64 bit).
Follow the directions on your screen to carry out the installation process.