'The RPC Server is unavailable' message on Vista with UAC

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In 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 properly.

 

Scenario 1: UAC is enabled and I am a member of the local administrators group.

  • When I start VMRCplus and connect to a remote host, I get the RPC message.
  • When I start VMRCplus elevated (right click on a shortcut to VMRCplus and select "Run as Administrator") I still get the RPC message.
  • When I start VMRCplus from an elevated command prompt (run cmd "as administrator") it works. ??????????

So it seems there is a difference between using "Run as administrator" on the VMRCplus shortcut and starting VMRCplus from an elevated command prompt.

 

Scenario 2: UAC is enabled and I am a member of the local users group.

  • When I start VMRCplus and connect to a remote host, I get the RPC message.
  • When I start VMRCplus elevated (right click on a shortcut to VMRCplus and select "Run as Administrator") and authenticate to the UAC dialog using a local administrator account it works.

 

So if you run into the RPC message on Vista with a properly configured Windows Firewall, you may want to try the steps above corresponding to your scenario.