C:\Program Files (x86)\Windows Resource Kits\Tools>rpcping -t ncacn_http -s exch
angeserver.xxxxxxxxx.com -o RpcProxy=exchangeserver.xxxxxxx.com -P "rock,excha
nge,*" -I "rock,exchange,*" -H 2 -u 10 -a connect -F 3 -v 3 -E -R none
RPCPing v2.12. Copyright (C) Microsoft Corporation, 2002
OS Version is: 6.0, Service Pack 2
Enter password for server:
Enter password for RPC/HTTP proxy:
RPCPinging proxy server exchangeserver.xxxxxxxxx.com with Echo Request Packet
Sending ping to server
Error 12175 returned in the WinHttpSendRequest.
Ping failed.
C:\Program Files (x86)\Windows Resource Kits\Tools>