Hello!
I want upload large files with client certificate authentication. Change UploadReadAheadSize setting is not right way, I need change SSLAlwaysNegoClientCert. But in IIS 7 this option is missing.
At now I change through this script http://stackoverflow.com/questions/2518314/make-iis-require-ssl-client-certificate-during-initial-handshake. But I search way to change without "IIS 6 compatibility".