---
title: DSLS
description: OpenLM supports monitoring for many license managers. This guide explains how to configure OpenLM to interface with Dassault Systèmes License Server.
product: OpenLM Version 25 / v26 (legacy)
---

> **OpenLM Version 25 / v26 (legacy).** This page documents the legacy product, not OpenLM Platform.

## Scope

OpenLM supports monitoring for many license managers.  
This guide explains how to configure OpenLM to interface with Dassault Systèmes License Server (DSLS), monitor usage, and collect license statistics.

You can query DSLS in two ways:

1. Query the license server directly from OpenLM Server. This method only provides usage information.  
2. Query the license server locally with OpenLM Broker and send data to OpenLM Server. This method provides more detail, such as denials and borrowed (offline) licenses.

:::tip
Using OpenLM Broker is recommended for richer data and more reliable communication.
:::

## Interfacing DSLS with OpenLM Server only

*OpenLM Server interfacing directly with DSLS*

### Add a new DSLS server

1. Open OpenLM Server. Go to **Start → Administration → License Manager Servers**.  
   The *License Manager* tab opens.
2. Select **Add LM**.  

   *Adding DSLS server*
3. Enter a **Display Name** (for example, *DSLS*).
4. Select **DSLS** from the **Type** list.
5. Toggle **Use Broker**:
   - Checked (default): Queries data through Broker.  
   - Unchecked: Queries directly from Server. Use unchecked for Server-only mode.
6. Enter a password if the DSLS server requires one.
7. Enter **Hostname** and **Port** (for example, `L312MD` and `4084`).
8. Set the **Time Zone** where the license server resides.
9. Configure **DSLS cluster structure**:
   - Checked: Monitor all servers in a redundant setup.  
   - Unchecked (default): Monitor only one DSLS server.  

   *Cluster configuration options*
10. Select **SAVE**.
11. Switch to **LM Tools** tab.
12. Set **LM Type → DSLS**.
13. Enter the path to the DSLS executable (for example,  
   `C:\Program Files\Dassault Systemes\DS License Server\win_b64\code\bin`).
14. Select **SAVE**.

Your OpenLM Server is now ready to query DSLS and display data in EasyAdmin.

## Interfacing DSLS with OpenLM Server and Broker

*Broker interface with DSLS*

OpenLM Broker is optional but recommended. It should be installed on the DSLS server. Broker queries DSLS locally and forwards results to OpenLM Server, ensuring stable communication.

Broker provides:

- License usage reports  
- Denied request details  
- Borrowed license (offline) information  

### Configure Broker

1. Install the latest Broker. See the [Broker configuration guide](https://openlm.com/documentation/legacy/openlm-broker/openlm-broker-configuration).
2. Open Broker web UI: [http://localhost:5090/](http://localhost:5090/).
3. Go to **License Managers** tab.
4. Use **Detect** to find DSLS automatically.  
   If not detected, select **Add License Manager**, select **DSLS**, enter port, and select **ADD**.  

   *Adding DSLS in Broker*
5. Match **Date format** and **Language** to the license file.
6. Go to **Commands** tab → enter path to `DSLicSrv.exe`. Run **Execute** to test.  
   :::note  
   If DSLS uses a password, add it in command syntax. Ensure a space before each semicolon.  
   :::
7. Go to **Vendors** tab → **Add Vendor → Dassault Systemes**.
8. For multi-server setups, install Broker on each DSLS machine.
9. Ensure `status`, `data_inquiry`, and `denial` commands use locale `en_US`.

### Configure DSLS log files

1. Go to **Log files** tab → select **Add Log File**.
2. Select type **Other**.
3. Name the file (for example, *DSLS log file*).
4. Enter or browse to the file path (for example, `C:\my_dsls_log.log`).
5. Select vendor *Dassault Systemes*.
6. If logs rotate, check **Watch files by pattern**.

## Verify configuration in EasyAdmin

1. Open EasyAdmin.  
2. Go to **Start → Widgets → License Servers**.  
3. Verify DSLS appears in the list. A green circle means active connection (may take a few minutes).

## DSLS denials reports

In EasyAdmin, go to **Start → Reports → Denials**.

:::note
Denials are filtered for "true denials." Reports may be delayed until OpenLM confirms that a license was not granted afterward.
:::

Your OpenLM system is now set up to monitor DSLS.