"GET /ms/contoso_100_files/0MM0.wmv HTTP/1.0"
"Accept: */*"
"User-Agent: NSPlayer/4.1.0.3925"
"Host: netshow.micro.com"
"Pragma: no-cache,rate=1.000000,stream-time=0,stream-offset=0:0,request-context=1,max-duration=0"
"Pragma: xClientGUID={2200AD50-2C39-46c0-AE0A-2CA76D8C766D}"

string[] values = context.Request.GetValues("Pragma");