This knowledge base article will let you know what our Windows Servers run in order to help you decide if Windows Hosting is right for you:

All of our servers are running Windows Server 2012 R2 and IIS 8. We can support websites that use the following:

ASP 2.0
ASP 4.0
PHP 5.3+
PHPMail
ASPEmail
ASPJPEG
ASPUpload
Mail sending via SMTP
URL Rewriting (for CMS' such as Wordpress / Joomla)

If your website runs anything additional to this then please create a support ticket with us to see if we can help you with your web hosting.