http://blogs.technet.com/b/matthts/archive/2007/09/27/the-rpc-server-is-unavailable-message-on-vista-with-uac.aspxIn this post, I assume you have configured Windows Firewall correctly to allow traffic from VMRCplus. Please read the other post if you did not. When connecting to a remote host from Vista, I got the RPC message even with Windows Firewall set up properlyen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.technet.com/b/matthts/archive/2007/09/27/the-rpc-server-is-unavailable-message-on-vista-with-uac.aspx#2660493Wed, 19 Dec 2007 18:50:45 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:2660493normkokes<p>If you are getting the destination type does not support </p> <p>all required interfaces error just uninstall vmrcplus and reinstall making sure you install all options (2nd option in the install) Once done it will work fine.</p> <div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=2660493" width="1" height="1">http://blogs.technet.com/b/matthts/archive/2007/09/27/the-rpc-server-is-unavailable-message-on-vista-with-uac.aspx#2658696Wed, 19 Dec 2007 06:15:42 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:2658696mlindsay@ix.netcom.com<p>when trying to connect to a system with a virtual machine, the following error comes up &quot;Source object cannot be converted to the destination type since it does not support all required interfaces.&quot;</p> <p>any one know what this means? &nbsp;</p> <div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=2658696" width="1" height="1">