Get current .net framework dir

System.Runtime.InteropServices.RuntimeEnvironment.GetRuntimeDirectory()

using this function ,we could get current version framework dir.
it is better than read registry.

How to setup exchange server for transport agent test

I am working on transport agent develop in past weeks,
Here is how to set up 2 exchange server for test.


1: Install 2 active domain env.
2: Install 2 exchange server
3: config DNS let the servers know each other
4: Exchange Management console, Organizaiton Config:Hub Transport: (RemoteDomains, AcceptedDomains, SendConnectors)  add another domain.
5: Exchange Management Console, Server Configuration:Hub Transport: (Receive Connectors) add another server
   4 and 5 should config on both exchange server.
6: enable anoymous ,  when recieve error:#530 5.7.1 Client was not authenticated ##
  open : default receive connector: 
          check "Anonymous users"  click apply