If you have ever created a virtual machine using VMware server 2.0 and tried to use them on the previous VMware server 1.0.x you would find the virtual machine would not run and you would be confronted with an error.
The following two steps can be used to fix this and let you run the later virtual machine in the old server.
Open the [VirtualMachine].vmx and change VirtualHw.version to “4″.
Open the [VirtualMachine].vmdk and change ddb.virtualHWVersion to “4″.
Now you will be able to start up the virtual machine as if it were created using the 1.0.x version.
