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Matthijs' blog

VMRCplus and other things.

By Matthijs ten Seldam

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  • Welcome to my blog on
  • VMRCplus


  • I am a Principal Consultant with Microsoft Consulting Services focused on virtualization. I am co-author of "Virtualization with Microsoft Virtual Server 2005".

    Virtualization with Microsoft Virtual Server 2005

    The information in this weblog is provided "AS IS" with no warranties, and confers no rights. This weblog does not represent the thoughts, intentions, plans or strategies of my employer. It is solely my opinion. Inappropriate comments will be deleted at the authors discretion.
VMRCplus on Windows Server 2008

It has been a while since my last post. I am busy doing Hyper-V stuff these days. Trying to grasp the Hyper-V API is one of them...

Anyway, Windows Server 2008 has become available and people are installing Virtual Server 2005 R2 SP1 on it. Yes, you may think everyone is using Hyper-V beta on Server 2008. But there are still a lot of Virtual Server users out there. Virtual Server 2005 R2 SP1 is not supported on Windows Server 2008. It will be, but that will be an update to Virtual Server 2005 R2 SP1.

Some people reported issues with VMRCplus and accessing Virtual Server 2005 R2 SP1 on Windows Server 2008. So I had to see for myself if it worked or not.
After having performed the required configuration of Windows Firewall, I was able to access the remote Virtual Server host.

My scenario consisted of three Windows Server 2008 machines. 1 DC, one member server with Virtual Server 2005 R2 SP1 installed, one member server with VMRCplus.
I was logged on as a domain administrator. I allowed VMRCplus through Windows Firewall and enabled the 'Remote Administration' exception on both member servers. That was it, I could connect just fine.

Now, you may not want to run as domain administrator but use a regular user account. I tried that too.
I logged on to the VMRCplus machine with a regular domain user account (you can do that on Windows Server 2008).
But VMRCplus failed connecting to Virtual Server. One reason is that I did not give this account permissions on Virtual Server. So I gave this 'user' account Full Control of Virtual Server (not the host machine, just Virtual Server). It still failed because of insufficient DCOM permissions. So that was easily fixed by setting the proper permissions. I ran dcomcnfg, opened the properties of the computer, selected Edit Limits for 'Launch and Activation Permissions' and added the user account and gave it Remote Launch and Remote Activation permissions.

When using multiple accounts, I suggest using a 'Virtual Server Users' group and give that group the required permissions as outline above. You would then only have to add the user accounts to that group who need access to Virtual Server.

Posted: Friday, March 21, 2008 5:38 PM by matthts

Comments

RobinsonWM said:

Very helpful post.  I was struggling through this eariler this week.

Any news on when the patch for Virtual Server 2005 R2 SP1 for Server 2008 support will be released?  (As in the next few weeks, next few months?)

# March 21, 2008 12:48 PM

matthts said:

Somewhere in April.

# March 26, 2008 3:44 AM

kfoutts said:

I'm having issues as are others accessing VMRCplus server on a Server 2008 machine.  I can access fine if I shut down the firewall completely.  I've searched for the required ports - found 137, 138 udp and tcp, 139, 5900 and 1024.  I have tried these and every other one I could find searching google with "Ports VMRCPlus server 2008"  still I am unable to connect to the VMRCPLus server from a remote machine - again with the firewall down on the server I can connect.  So what did you do when you say ....

"After having performed the required configuration of Windows Firewall, I was able to access the remote Virtual Server host"

Any other ideas?  This is a clean install of server 2008.  The only thing installed on it is Virtual Server and VMRCPlus.  After this problem I have added IIS role.

# July 1, 2008 11:17 AM
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