For all intents and purposes they both accomplish the same task, that of serving your Web pages to the world. We prefer that our customers use our Linux based web servers and as such, this is the default setting when a customer adds a domain name to their azym.com hosting account.We recommend that our customers only use a Microsoft Web server if they specifically require Microsoft ASP coding or Microsoft SQL Databases or Microsoft Access Databases. Every effort is made to keep all of our Web servers as secure as possible and our Microsoft Web servers are security patched as soon as new updates become available.