Installation & Activation #

How to install and license the DMSI Update Server extension.

Step 1: Install the Plugin #

1. Download the plugin ZIP from your DMSI account
2. Go to WordPress Admin > Plugins > Add New > Upload Plugin
3. Select the ZIP and click Install Now
4. Click Activate Plugin

DMSI-DDLS Core must already be installed and active. If it is not, the plugin will display a notice and not function.

Step 2: Enter Your License Key #

1. Go to DDLS > Settings
2. Click the Update Server tab
3. Find the "Extension License" section
4. Enter your license key in the field
5. Click Activate License

The license is validated against dmsi.gr. Once active, all features load immediately.

Step 3: Flush Rewrite Rules #

The extension registers a custom download endpoint at /dmsilm-download/. After activation:

1. Go to Settings > Permalinks
2. Click Save Changes (no changes needed — just click Save)

This registers the rewrite rule. If you skip this step, download requests return 404.

Step 4: Verify Installation #

1. Go to DDLS > Settings > Update Server tab
2. Scroll to the "API Endpoints" section
3. You should see a table with your site's update API URLs

If the endpoints table appears, the extension is working.

What Happens During Activation #

When the plugin activates for the first time it:

• Creates 5 database tables (version meta, update checks, downloads, version tracking, email queue)
• Sets default option values
• Schedules background cron jobs
• Creates the upload directory at wp-content/uploads/dmsilm/updates/ with directory protection

Related Topics #

• Requirements
• Quick Start Guide
• The Update Server Settings Tab