enable PUT on IIS 6 for wcf .net 4.0 "SVCless" rest services

How do I enable PUT on my IIS 6 for wcf .net 4.0 "SVCless" rest services. My Services are at the root of the website.

Please help!

TIA

EDIT:

I get "501 - Not Implemented" when the service is hosted at the root of the 开发者_开发知识库site. If if it is a child application it works.

Lets try this.

• Go to IIS MMC
• Go to properties of hosting site
• Go to Home directory tab
• Go to configuration
• Check that wildcard mapping is configured
• Check that application extensions maps aspnet_isapi.dll (from .NET 4.0) to all verbs - default is only GET, POST, HEAD, DEBUG

Had to enable Webdav