Linux
Linux is recommended if you’re using PHP-based applications. Common examples include Drupal, WordPress, Magento, Joomla, Yii, and CodeIgniter.
Windows
Choose Windows if you will run ASP/.NET based software. Examples include Sitecore, DotNetNuke, Umbraco, and Kentico. Running PHP through Windows, while possible, is suboptimal.
Hybrid
TsoHost’s Hybrid mode will enable you to run PHP and ASP simultaneously. Your PHP code will run through their Linux cluster. Your ASP code will run through their Windows cluster.
This means you can run PHP and ASP code on the same sites, and from a single dashboard. TsoHost adds: “The bias determines whether code other than PHP/ASP (ie raw HTML) is run through Windows or Linux.