For shard owners:
Add this link to anywhere on your website. You must edit the contents of the meta data to specify the information for your specific site.
<a href="http://www.scriptuo.com/index.php?action=downloads;cat=6" title="Drag this link into the SUO Launcher window!">SUO Launcher
<meta name="Shardname" content="Your_shard_name">
<meta name="ShardAddress" content="1.2.3.4">
<meta name="ShardPort" content="2593">
<meta name="ShardImageURL" content="http://www.youraddresshere.com/images">
<meta name="ShardWebsiteURL" content="http://www.youraddresshere.com">
</a>
I recently added the ShardWebsiteURL meta tag because the shard web url might be different than the ShardImageURL
You should leave the link re-direction the same because that will point the user to a way to download the latest version of the Launcher.exe file.
Edit: 3/25/2015
For version 19 RC2, I've added a way to just paste this link into the program. If you provide a way for the user to "cut" the above link to their clipboard, I've provided a method to context-right-click the information and it will be handled exactly as if it had been dragged/dropped.
Here's the little bit of HTML that creates and edit box:
<textarea rows="1" cols="20">
<a href="http://www.scriptuo.com/index.php?action=downloads;cat=6" title="Drag this link into the SUO Launcher window!">SUO Launcher
<meta name="Shardname" content="Your Shard Name">
<meta name="ShardAddress" content="1.2.3.4">
<meta name="ShardPort" content="2593">
<meta name="ShardImageURL" content="http://www.scriptuo.com">
<meta name="ShardWebsiteURL" content="http://www.scriptuo.com">
</a>
</textarea>