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Asked: 2026-05-11T01:05:05+00:00

I am using VMware Workstation 6.5 on Windows Vista x64. I am trying to

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I am using VMware Workstation 6.5 on Windows Vista x64. I am trying to write some C# code that uses VMware Vix v1.6.1 COM API to get a list of registered virtual machines.

The code I am using is as follows:

using System; using VixCOM;  namespace ConsoleApplication48 {     internal class Program     {         private static void Main()         {             var lib = new VixLibClass();             object results = null;              var job = lib.Connect(Constants.VIX_API_VERSION, Constants.VIX_SERVICEPROVIDER_VMWARE_WORKSTATION, null, 0, null, null, 0, null, null);              var err = job.Wait(new[] {Constants.VIX_PROPERTY_JOB_RESULT_HANDLE}, ref results);          if (lib.ErrorIndicatesFailure(err))             Console.WriteLine('Error: ' + err);          var host = (IHost)((object[])results)[0];          job = host.FindItems(Constants.VIX_FIND_REGISTERED_VMS, null, -1, new DiscoveryCallback(lib));         job.WaitWithoutResults();          host.Disconnect();     } }  internal class DiscoveryCallback : ICallback {     protected VixLibClass lib;      public DiscoveryCallback(VixLibClass lib)     {         this.lib = lib;     }      #region ICallback Members      public void OnVixEvent(IJob job, int eventType, IVixHandle moreEventInfo)     {         // this method is never called     }      #endregion     } }

I am aware that the COM dll is 32-bit, so I made sure that the test application is compiled as 32-bit. Also I made sure that all VMware services are running.

There are no exceptions thrown, no errors returned (as far as I can see) and no events written into the event log.

Strangely enough the above code works when I try to get a list of running VMs using constant VIX_FIND_RUNNING_VMS.

Any ideas on what might be causing this?

Thanks,

Arnie

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1 Answer

  1. Quick update on the situation.

    I’ve had a closer look at the official documentation for the FindItems() method. Constant VIX_FIND_REGISTERED_VMS is not listed as a supported parameter – only constant VIX_FIND_RUNNING_VMS is.

    My guess is this means that currently VIX API offers no way to get a list of VMs registered on a VMware Workstation instance.

    That also would explain why the vmrun.exe command-line utility offers no way of getting registered VMs.

    I guess I’ll just have to wait until the next version of the VIX API is released.

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