Can I call .NET-functions from PHP on Windows Azure?

I'm currently evaluating the Windows Azure platform. The situation is this: We have a couple of .NET-DLLs with functions which we would like to expose as webservices for our clients. Since all our webservice experience is in PHP though, we would love to just call the .NET-functions from PHP and handle the webstuff in PHP.

I know this is possible via COM or Phalanger. But is it also possible for PHP applications deployed on Windows Azure?