For everyone interested in Remoting who did not yet receive my book [1]: Christian Weyer just sent me this URL which I really have to share: http://www.gotdotnet.com/userfiles/toub/SecureRemoting.zip. It's a new example from Microsoft that contains a .NET Remoting channel which uses encryption and which can be employed without relying on IIS. [But mind that the current version only supports synchronous processing of messages; async is not yet supported ... but it wouldn't be to hard for you to add this as well ...]

[1] ;-)