LEMR Wiki

This article explains technical details about LEMR software. If you are an IT Support Engineer or a Managed Service Provider, this article will help you configure your security applications to allow LEMR to work in your environment.

LEMR Application and Firewall Exceptions

LEMR connects your Electronic Medical Record (EMR) system with your diagnostic medical device software. To enable LEMR to work, it must interoperate with all of the affected software. Our system also involves relaying data through our cloud server. This sophistcated system does occasionally run into issues where security software blocks some features. This document will help a technical support engineer add exceptions to allow LEMR to run properly. 

For background information on how LEMR works, please read this article:
LEMR - How it Works & FAQ | LEMR Wiki

Security applications known to block LEMR features:

Application exceptions

Simple application filtering rules

C:\Program Files\LEMR\*
Executables and DLL files in this folder and its subfolders will need to be allowed to run.

C:\ProgramData\LEMR\*
Executables and DLL files in this folder and its subfolders will need to run in order to execute automatic LEMR updates smoothly. LEMR will also need read and write access for the logs and database files in this folder. 

%temp%\LEMR*.exe
Automatic LEMR updates will be downloaded to the user's %temp% folder, extracted to that folder, and executed from that folder. These executables will need to be allowed to run for the automatic update process to work properly. More information about automatic updates can be found here: LEMR - Troubleshooting Update Issues | LEMR Wiki

Digital signature

All of the LEMR executables and DLL files are digitally signed by our code signing certificate to ensure files are valid. This signature can be used to ensure only valid LEMR files are executed (if supported by the application control software).

Certificate Thumbprint: 3d9ab3a5c5928397a2342bdf8ec26c452be378bf

Additional information for security applications

Avast Business Behaviour Shield Blocks LEMR Software, Crashes Best Practice

Important note: 
Individual application rules will apply for the medical device vendor's products. Please confirm which devices are to be used by the site so we can provide specific rules for those devices.

Device vendor exceptions

Firewall exceptions

Simple internet access rules for LEMR (all via HTTPS)

Additional information for firewall applications

Sophos Endpoint Software "Block Malicious Downloads" breaks HTML Server Sent Event (SSE) Connections | LEMR Wiki

Device vendor exceptions

Cardioline Touch ECG

Simple application filtering rules are as follows:

%LocalAppData%\Cardioline\touchECG\*
Executables and DLL files in this folder and its subfolders will need to run in order to execute this application.
Example: C:\Users\nurse\AppData\Local\Cardioline\touchECG

Need Help? 
LEMR customers can get help by contacting LEMR Support.