How to disable HTTP PUT and DELETE in silverstream

Hi,

Can any one tell me how to disable HTTP put and delete from silverstream or eXtend4.0 server?

I got critical severity when security tests have been run on the server. Vulnerbaility / Service says "Web server allows HTTP method DELETE and PUT"

Can Someone tell how can the server not allow HTTP PUTand DELETE in silverstream or eXtend server

Thanks,
Shashidhar Solipuram