GET http://crl.microsoft.com/pki/crl/products/microsoftrootcert.crl HTTP/1.1
Cache-Control: max-age = 900
Accept: */*
If-Modified-Since: Fri, 01 Feb 2013 06:00:12 GMT
If-None-Match: "8245cc65410ce1:0"
User-Agent: Microsoft-CryptoAPI/6.1
Connection: Keep-Alive
Host: crl.microsoft.com

