Implement WebDav client with Silverlight

I've been looking for a way to implement WebDAV client (PROPFIND, DELETE, PUT...) with Silverlight but without any luck. Specify any other values than "POST" and "GET" to HttpWebRequest.Method will just causes an exception 开发者_运维知识库in Silverlight.

Is there any other way to do it without using XMLHTTPRequest?

Any help would be greatly appreciated.