The shared plans on this site are described for PHP, MySQL and the usual Linux web stack. They are the right fit for WordPress, Laravel, and similar applications. They are the wrong fit for a site that must run a Windows-only component.
Asking for Windows in an order note does not create a Windows plan. If the operator cannot host that workload, cancel before the account is marked active. Before activation the hosting fee is not due. After activation the ordinary 7-day rule applies, including the 200-message condition.
Choosing Linux is also a mail and permission model. Paths use forward slashes. Case matters. A site copied from a Windows laptop can break on a capital letter in a filename. Rename those files before you blame the plan.
The journal will not rank other companies. If you need a different operating system, say so in a ticket and wait for a yes or a cancellation, rather than assuming the Unlimited label includes every operating system.