The new SaveAs method of the Request object saves the current HTTP request to a file, which can be very useful for logging and debugging reasons. You should pass True to its second argument if you want to save HTTP headers as well:
Request.SaveAs "c:lastrequest.txt", True
The saved file contains something like this:
GET /AspObjects/RequestForm.aspx HTTP/1.1Connection: Keep-AliveAccept: */*Accept-Encoding: gzip, deflateAccept-Language: en-usCookie: LastVisitDate=12%2F6%2F2001+5%3A02%3A46+PM; ASP.NET_SessionId=ee4mi0ugensntgvkfjt0v4ndHost: localhostUser-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR 1.0.3512)