GET http://crl.microsoft.com/pki/crl/products/MicrosoftTimeStampPCA.crl HTTP/1.1
Cache-Control: max-age = 900
Accept: */*
If-Modified-Since: Wed, 09 Jan 2013 06:00:54 GMT
If-None-Match: "ea979eaf2eeecd1:0"
User-Agent: Microsoft-CryptoAPI/6.1
Connection: Keep-Alive
Host: crl.microsoft.com

