Installing in VMWare Workstation

I have download the Haiku VM zip file today and tried to run it within VMWare Workstation.

When I try to open the VMX file I get an error message:

Unable to open configuration file “D:\Virtual Machines\Haiku\haiku-r1alpha2.vmx”: (null)

Having searched a number of forums I could see plenty of people having this problem but no solution. I’ve been able to run the same image for some time on OS X using VMWare Fusion. I’ve tried this several times under Windwows with no success.

Any help on this would be welcome.