Using UDDI to register a service without WSDL

Can I use UDDI to register a service that is not a Web Service (that hasn't got a WSDL)? Do You have hint/comment on this? Do you see some problems?
The UDDI standard is extremely flexible - although it was designed with Web services in mind, it can easily be used to register any type of service.

At a technical level, you can publish your service as any other WSDL service but simply not associate the WSDL interface reference (i.e. a tModelInstanceInfo referencing the WSDL tModel). You may want to define an interface (i.e. a tModel) that describes the type of service you are registering. I see no significant problems doing this.