I found the answer: HTTP/1.1 Specs --> 13.3 Validation Model http://www.w3.org/Protocols/rfc2616/rfc2616-sec13.html#sec13.3 and HTTP/1.1 Specs --> 14.24 If-Match http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.24 Very, very cool!!!!!!!!!!!!! I am about to go to beta, but this I will do for the RC1! For those that helped enlighten me, thanks! Sam