Before you can start the install process, you must verify that you are using the correct version of Isah and the Isah database.
Checking Your Isah Version and Database Version
You should only install the Isah Engineering Link updates when you are using the software versions as specified in readme.txt in the following directory: \IsahSetup_4_5_EngineeringLink\[UPDATEPACKNO]_[VERSIONNO]\Documentation.
To check which software version you are using: