Hello,
This looks like an interesting initiative and I'd like to request a session to go through your idea and any specific requirements you've identified at this stage. My understanding is you'd like to offer this as a PAAS/SAAS solution allowing practically anyone (any device, independent f the operating system) to run Windows applications remotely on a per-rent basis.
My team and I are here to do the entire scoping, architectural design, implement and help you go live with this using Windows RemoteApp, physical or cloud technology and the appropriate back-end and services including payment integration (if required).
Please can you contact me through the freelancer chat to discuss, I look forward to speaking to you!
regards,
Janos