When Lead Discovery Premium 1.2.x is deployed to Spotfire Server and Analyst client is updated, the client displays an error box at startup with message:eowp.exe - Application Error - The instruction at 0x000000001001C727 referenced memory at 0x0000000000

When Lead Discovery Premium 1.2.x is deployed to Spotfire Server and Analyst client is updated, the client displays an error box at startup with message:

eowp.exe - Application Error - The instruction at 0x000000001001C727 referenced memory at 0x0000000000000004. The memory could not be read.

There could be additional errors displayed, for example:

A runtime exception has occurred. You can handle EO.Base.Runtime.Exception event to silent this message. If the problem continues, please contact your software vendor with the information below. Exception: System.Exception: Channel disconnected.

Most Lead Discovery Premium functionality is also not available.

Environment:

Spotfire Analyst: All versions
Revvity Signals Lead Discovery Premium: 1.2.x

Details

This problem is usually caused by endpoint protection or anti-virus software running on the system (TrendMicro, Cylance, Avecto, BeyondTrust, etc.). Revvity Signals Lead Discovery Premium uses a 3rd party component, EO Browser (eowp.exe), from Essential Objects, Inc. This component is dynamically created and loaded as a child processes within Analyst client. It is used to run a browser engine for multiple features within Lead Discovery Premium. Third party anti-virus / security software can often raise false alarm and cause eowp.exe to fail.

The eowp.exe is installed in Analyst client installation directory, for example:

C:\Program Files (x86)\TIBCO\Spotfire\10.x\Modules\Lead Discovery Chemcharts Forms_1.4.4.9\eowp.exe

or

D:\Users\[user-name]\AppData\Local\TIBCO\Spotfire\10.x\Modules\Lead Discovery Chemcharts Forms_1.4.4.9\eowp.exe

Resolution:

This problem is usually resolved by making sure that eowp.exe and DLL files in its directory are whitelisted by all endpoint protection and anti-virus software that is running on the machine.