How To Open A VMware Workstation 6.x VM with VMware Server 1.x

Posted by Carson       Trackback

Although we have some user licenses for VMware workstation 6.0 at work, I still prefer the Server product, as it allows you to run VMs in the background as the local system account.  Additionally, the Server product can be configured to automatically startup/shutdown VMs based on the needs of the host.  Either VMware Workstation does not support this feature or I am not looking in the right place.

I tried to open a VM that I created with VMware workstation 6 with the latest stable VMware Server version, 1.0.7.  VMware server threw an error that the “Configuration file was created by a VMware product with more features than this version”.


I was able to get around this error by browsing on my host OS filesystem to the base directory for this VM, then I updated the main VM config file (vmname.vmx) and the master VM disk config file (vmname.vmdk)

For the VM configuration file (.vmx), I changed the line:

virtualHW.version = “6″


virtualHW.version = “4″

For the VM master disk file (.vmdk), I changed the line:

ddb.virtualHWVersion = “6″


ddb.virtualHWVersion = “4″

Now VMware Server 1.0.7 can run the VM!  Everything appears to run fine, and I have not seen any negative side effects.

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