Route HTTP Request Through Remote PC? WAN

Hello,

I want to route GET HTTP request through a remote PC which is behind a router and not on a local network, because the web server that I want to send an HTTP request has an IP filtering, which only allows an HTTP request to be sent from a single ip address which belongs to this remote PC and all others are blocked. The web server software is ISS 7.5 and ASP.NET. I do have an RDP admin access to the remote pc and I don't have an access to the router settings, because it is password protected. Is there are any software that could be installed on a remote PC that will allow me to do it?

Thank you