VMWare Server

I highly doubt VMware will work inside Virtuozzo VPS as it requires direct access to hardware which is not available inside the VPS.
 
Why does it have to run in vmware? Because the software you are looking for support multiple OS and all vmware does for you is allow you to run multiple os on the same hardware at the same time. I think you would be able to run the wiki software without vmware.
 
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